Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 45 mph.
* WHERE...Livingston, Ford, Iroquois, La Salle, Eastern Will,
Grundy, Kankakee, Kendall, Northern Will, Southern Cook, and
Southern Will Counties.
* WHEN...Until 4 PM CST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Feb 20, 2026 18:00
Until: Feb 20, 2026 22:00
Wind Advisory
* WHAT...West winds 25 to 35 mph with gusts up to 45 mph.
* WHERE...Portions of north central and northeast Illinois and
northwest Indiana.
* WHEN...Until 4 PM CST /5 PM EST/ this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Feb 20, 2026 18:00
Until: Feb 20, 2026 22:00
Fire Weather Watch
...A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY...
The combination of unseasonably warm temperatures (highs in the
60s), dry conditions (RH values around 15-25%), and gusty west-
southwest winds (gusting around 35-40 mph) will lead to an
elevated fire danger on Wednesday. While fuel moistures may be
more questionable in some areas, local fire agencies indicate
that finer fuels are primed and could lead to rapid fire spread
in these conditions. For this reason, a Fire Weather Watch has
been issued for portions of northern Illinois on Wednesday.
Confidence in Red Flag Warning criteria being met is currently
highest along and north of Interstate 88.
* Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee,
De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy and
Will.
* Timing...From 9 AM CST Wednesday through Wednesday evening.
* Winds...Southwest 15 to 25 mph with gusts up to 40 to 45 mph.
* Relative Humidity...As low as 15 percent.
* Impacts...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
From: Feb 18, 2026 03:32
Until: Feb 18, 2026 11:45
Fire Weather Watch
...A FIRE WEATHER WATCH IS IN EFFECT FOR WEDNESDAY...
The combination of unseasonably warm temperatures (highs in the
60s), dry conditions (RH values around 15-25%), and gusty west-
southwest winds (gusting around 35-40 mph) will lead to an
elevated fire danger on Wednesday. While fuel moistures may be
more questionable in some areas, local fire agencies indicate that
finer fuels are primed and could lead to rapid fire spread in
these conditions. For this reason, a Fire Weather Watch has been
issued for portions of northern Illinois on Wednesday. Confidence
in Red Flag Warning criteria being met is currently highest along
and north of Interstate 88.
The National Weather Service in Chicago has issued a Fire Weather
Watch, which is in effect from Wednesday morning through
Wednesday evening.
* Affected Area...Winnebago, Boone, McHenry, Lake IL, Ogle, Lee,
De Kalb, Kane, DuPage, Cook, La Salle, Kendall, Grundy and
Will.
* Timing...From Wednesday morning through Wednesday evening.
* Winds...Southwest 15 to 25 mph with gusts up to 40 mph.
* Relative Humidity...As low as 15 percent.
* Impacts...Any fire that develops will catch and spread
quickly. Outdoor burning is not recommended.
From: Feb 17, 2026 19:45
Until: Feb 18, 2026 03:45
Flood Advisory
...The Flood Advisory continues for the following rivers in
Illinois...
Kankakee River at Momence affecting Kankakee County.
For the Kankakee River...including Momence...elevated river levels
are forecast.
* WHAT...Flooding caused by an ice jam continues.
* WHERE...Kankakee River from IL/IN state line downstream to
confluence with Iroquois River at Aroma Park, including the
Momence gauge.
* WHEN...Until further notice.
* IMPACTS...Localized flooding of wetlands, forest land,
agricultural land, and roadways may occur along the river.
* ADDITIONAL DETAILS...
- At 1:45 PM CST Friday the stage was 4.5 feet. The water level
was affected by an ice jam downstream of the gauge.
- Forecast...The river is expected to remain just below flood
stage while the ice jam is in place, with local water level
fluctuations possible.
- Flood stage is 5.0 feet.
- http://www.weather.gov/safety/flood
From: Jan 30, 2026 20:19
Until: Jan 31, 2026 20:30
Winter Weather Advisory
* WHAT...Lake effect snow expected Saturday morning. Total snow
accumulations could locally exceed 3 inches, especially near the
lake.
* WHERE...Northern Cook County.
* WHEN...From 6 AM to 4 PM CST Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...The band of snow is expected to shift back
westward into parts of northeastern Illinois Saturday morning.
This will likely result in additional localized accumulations and
travel impacts.
From: Jan 31, 2026 03:01
Until: Jan 31, 2026 13:15
Winter Weather Advisory
* WHAT...Lake effect snow expected. Total snow accumulations could
locally exceed 4 inches, especially near the Illinois-Indiana
stateline.
* WHERE...Eastern Will County.
* WHEN...From 6 AM to 4 PM CST Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
* ADDITIONAL DETAILS...The band of snow is expected to shift back
westward into parts of northeastern Illinois Saturday morning, and
this could result in additional localized accumulations and travel
impacts.
From: Jan 31, 2026 03:01
Until: Jan 31, 2026 13:15
Winter Weather Advisory
* WHAT...Lake effect snow expected Saturday morning. Total snow
accumulations could locally exceed 3 inches, especially near the
lake.
* WHERE...Central Cook and Southern Cook Counties.
* WHEN...From 6 AM to 4 PM CST Saturday.
* IMPACTS...Localized hazardous travel is expected on Saturday
especially near the lake.
* ADDITIONAL DETAILS...A band of lake effect snow is expected to
shift back westward Saturday morning, and is expected to impact
parts of northeastern Illinois on Saturday. While the footprint of
accumulating snow is likely to be lower, localized additional
accumulations and associated travel impacts are expected.
From: Jan 31, 2026 03:01
Until: Jan 31, 2026 13:15
Winter Storm Warning
* WHAT...Heavy lake effect snow with total snow accumulations over 6
inches expected, mainly near and north of US Route 30. Isolated
totals up to a foot are possible.
* WHERE...Lake IN and Porter Counties.
* WHEN...Until 6 PM CST Saturday.
* IMPACTS...Travel could be very difficult to nearly impossible at
times north of U.S. Route 30 with near white out conditions and
snowfall rates of 2 or more inches per hour under the most intense
portions of the band.
* ADDITIONAL DETAILS...The Heaviest snowfall is expected late this
evening through Saturday morning, when locally 2 inch per hour
rates are expected at times. Some breaks in the snowfall are
possible at times as the snow band wobbles tonight and Saturday.
From: Jan 31, 2026 03:01
Until: Jan 31, 2026 13:15
Winter Weather Advisory
* WHAT...For the Winter Storm Warning through this evening, heavy
lake effect snow. Snow accumulations locally in excess of 6
inches, particularly near the lake. For the Winter Weather
Advisory on Saturday, another round of lake effect snow, with
additional localized accumulations in excess of 3 inches possible.
* WHERE...Central Cook and Southern Cook Counties.
* WHEN...For the Winter Storm Warning, until midnight CST tonight.
For the Winter Weather Advisory, from 6 AM to 4 PM CST Saturday.
* IMPACTS...Travel will remain hazardous at times into this evening,
particularly near the lake. Additional localized adverse impacts
to travel are likely at times on Saturday.
* ADDITIONAL DETAILS...Accumulating lake effect snow will continue
into this evening, and will fall locally at 1 to 2 inch per hour
rates at times, making for hazardous travel conditions. This will
particularly be the case for areas in close proximity to the lake.
This intense band of lake effect snow is expected to shift
eastward into northwestern Indiana late this evening and
overnight, thus resulting in a several hour break in accumulating
snow across Cook county overnight. However, the band is expected
to shift back westward Saturday morning, and is expected to impact
parts of northeastern Illinois on Saturday. While the footprint of
accumulating snow is likely to be lower on Saturday, localized
additional accumulations and associated travel impacts are
expected.
From: Jan 30, 2026 19:42
Until: Jan 31, 2026 05:45
Winter Weather Advisory
* WHAT...Two periods of accumulating lake effect snow expected.
Total snow accumulations could locally exceed 5 inches,
particularly near the lake.
* WHERE...Northern Cook County.
* WHEN...For the first Winter Weather Advisory, until 8 PM CST this
evening. For the second Winter Weather Advisory, from 6 AM to 4 PM
CST Saturday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. The hazardous conditions will
impact this evenings commute.
* ADDITIONAL DETAILS...Lake effect snow is expected to impact the
area in two waves. The first will persist through this evening,
before the lake effect band shifts east into Indiana for a period
overnight. The band of snow is then expected to shift back
westward into parts of northeastern Illinois Saturday morning.
This will likely result in additional localized accumulations and
travel impacts.
From: Jan 30, 2026 19:42
Until: Jan 31, 2026 05:45
Winter Weather Advisory
* WHAT...Two periods of accumulating lake effect snow expected.
Total snow accumulations could locally exceed 4 inches,
particularly near the Indiana state line.
* WHERE...Eastern Will County.
* WHEN...For the first Winter Weather Advisory, from 6 PM this
evening to midnight CST tonight. For the second Winter Weather
Advisory, from 6 AM to 4 PM CST Saturday.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Lake effect snow is expected to impact the
area in two waves. The first will occur through this evening,
before the lake effect band shifts east into Indiana for a period
tonight. The band of snow is then expected to shift back westward
into parts of northeastern Illinois Saturday morning, and this
could result in additional localized accumulations and travel
impacts.
From: Jan 30, 2026 19:42
Until: Jan 31, 2026 05:45
Winter Storm Warning
* WHAT...Heavy lake effect snow with total snow accumulations over 6
inches expected, mainly near and north of US Route 30. Isolated
totals up to a foot are possible.
* WHERE...Lake IN and Porter Counties.
* WHEN...From 6 PM this evening to 6 PM CST Saturday.
* IMPACTS...Travel could be very difficult to nearly impossible at
times north of U.S. Route 30 with near white out conditions and
snowfall rates of 2 or more inches per hour under the most intense
portions of the band.
* ADDITIONAL DETAILS...The Heaviest snowfall is expected late this
evening through Saturday morning, when locally 2 inch per hour
rates are expected at times. Some breaks in the snowfall are
possible at times as the snow band wobbles tonight and Saturday.
From: Jan 30, 2026 19:42
Until: Jan 31, 2026 05:45
Winter Storm Warning
* WHAT...For the Winter Storm Warning through this evening, heavy
lake effect snow. Snow accumulations locally in excess of 6
inches, particularly near the lake. For the Winter Weather
Advisory on Saturday, another round of lake effect snow, with
additional localized accumulations in excess of 3 inches possible.
* WHERE...Central Cook and Southern Cook Counties.
* WHEN...For the Winter Storm Warning, until midnight CST tonight.
For the Winter Weather Advisory, from 6 AM to 4 PM CST Saturday.
* IMPACTS...Travel will remain hazardous at times into this evening,
particularly near the lake. Additional localized adverse impacts
to travel are likely at times on Saturday.
* ADDITIONAL DETAILS...Accumulating lake effect snow will continue
into this evening, and will fall locally at 1 to 2 inch per hour
rates at times, making for hazardous travel conditions. This will
particularly be the case for areas in close proximity to the lake.
This intense band of lake effect snow is expected to shift
eastward into northwestern Indiana late this evening and
overnight, thus resulting in a several hour break in accumulating
snow across Cook county overnight. However, the band is expected
to shift back westward Saturday morning, and is expected to impact
parts of northeastern Illinois on Saturday. While the footprint of
accumulating snow is likely to be lower on Saturday, localized
additional accumulations and associated travel impacts are
expected.
From: Jan 30, 2026 19:42
Until: Jan 31, 2026 05:45
Flood Advisory
...The Flood Advisory continues for the following rivers in
Illinois...
Kankakee River at Momence affecting Kankakee County.
For the Kankakee River...including Momence...elevated river levels
are forecast.
* WHAT...Flooding caused by an ice jam continues.
* WHERE...Kankakee River from IL/IN state line downstream to
confluence with Iroquois River at Aroma Park, including the
Momence gauge.
* WHEN...Until further notice.
* IMPACTS...Localized flooding of wetlands, forest land,
agricultural land, and roadways may occur along the river.
* ADDITIONAL DETAILS...
- At 1:45 PM CST Tuesday the stage was 4.7 feet.
- Forecast...The river is expected to remain near flood stage
while the ice jam is in place, with local water level
fluctuations possible.
- Flood stage is 5.0 feet.
- http://www.weather.gov/safety/flood
From: Jan 27, 2026 20:31
Until: Jan 28, 2026 20:45
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 TO 25 below expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...From midnight CST tonight to noon CST Monday.
* IMPACTS...The dangerously cold wind chills as low as 25 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 26, 2026 06:00
Until: Jan 26, 2026 18:00
Cold Weather Advisory
* WHAT...Bitterly cold wind chills of 15 to 30 below zero expected.
* WHERE...In Illinois, Ford and Iroquois Counties. In Indiana,
Benton, Jasper, Lake IN, Newton, and Porter Counties.
* WHEN...From 3 AM CST /4 AM EST/ Friday to 9 AM CST /10 AM EST/
Saturday.
* IMPACTS...The dangerously cold wind chills could cause frostbite
on exposed skin in as few as 10 to 30 minutes.
From: Jan 23, 2026 02:45
Until: Jan 23, 2026 12:45
Cold Weather Advisory
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
of 30 to 35 below zero expected. For the Cold Weather Advisory,
bitterly cold wind chills of 15 to 30 below zero expected.
* WHERE...Central Cook County.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...The dangerously cold wind chills could cause frostbite
on exposed skin in as few as 10 minutes.
From: Jan 23, 2026 02:45
Until: Jan 23, 2026 12:45
Cold Weather Advisory
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
of 30 to 40 below zero expected. For the Cold Weather Advisory,
bitterly cold wind chills of 15 to 30 below zero expected.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...The dangerously cold wind chills could cause frostbite
on exposed skin in as few as 10 minutes.
From: Jan 23, 2026 02:45
Until: Jan 23, 2026 12:45
Extreme Cold Warning
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
of 30 to 35 below zero expected. For the Cold Weather Advisory,
bitterly cold wind chills of 15 to 30 below zero expected.
* WHERE...Central Cook County.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...The dangerously cold wind chills could cause frostbite
on exposed skin in as few as 10 minutes.
From: Jan 23, 2026 02:45
Until: Jan 23, 2026 12:45
Extreme Cold Warning
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
of 30 to 40 below zero expected. For the Cold Weather Advisory,
bitterly cold wind chills of 15 to 30 below zero expected.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...The dangerously cold wind chills could cause frostbite
on exposed skin in as few as 10 minutes.
From: Jan 23, 2026 02:45
Until: Jan 23, 2026 12:45
Cold Weather Advisory
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
as low as 30 to 35 below zero expected. For the Cold Weather
Advisory, very cold wind chills as low as 15 to 30 below expected.
* WHERE...Central Cook County.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...Dangerously cold wind chills could cause frostbite on
exposed skin in as little as 10 minutes.
From: Jan 22, 2026 17:24
Until: Jan 23, 2026 06:30
Extreme Cold Warning
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
as low as 30 to 35 below zero expected. For the Cold Weather
Advisory, very cold wind chills as low as 15 to 30 below expected.
* WHERE...Central Cook County.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...Dangerously cold wind chills could cause frostbite on
exposed skin in as little as 10 minutes.
From: Jan 22, 2026 17:24
Until: Jan 23, 2026 06:30
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 to 30 below expected.
* WHERE...In Illinois, Ford and Iroquois Counties. In Indiana,
Benton, Jasper, Lake IN, Newton, and Porter Counties.
* WHEN...From 3 AM CST /4 AM EST/ Friday to 9 AM CST /10 AM EST/
Saturday.
* IMPACTS...Dangerously cold wind chills could cause frostbite on
exposed skin in as little as 10 to 30 minutes.
From: Jan 22, 2026 20:29
Until: Jan 23, 2026 06:30
Cold Weather Advisory
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
as low as 30 to 40 below zero expected. For the Cold Weather
Advisory, very cold wind chills as low as 15 to 30 below expected.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...Dangerously cold wind chills could cause frostbite on
exposed skin in as little as 10 minutes.
* ADDITIONAL DETAILS...Coldest wind chills are expected across
interior portions of northern Illinois.
From: Jan 22, 2026 17:24
Until: Jan 23, 2026 06:30
Extreme Cold Warning
* WHAT...For the Extreme Cold Warning, dangerously cold wind chills
as low as 30 to 40 below zero expected. For the Cold Weather
Advisory, very cold wind chills as low as 15 to 30 below expected.
* WHERE...Portions of central, north central, and northeast Illinois.
* WHEN...For the Extreme Cold Warning, from 3 AM to noon CST Friday.
For the Cold Weather Advisory, from noon Friday to 9 AM CST
Saturday.
* IMPACTS...Dangerously cold wind chills could cause frostbite on
exposed skin in as little as 10 minutes.
* ADDITIONAL DETAILS...Coldest wind chills are expected across
interior portions of northern Illinois.
From: Jan 22, 2026 17:24
Until: Jan 23, 2026 06:30
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 to 30 below expected.
* WHERE...In Illinois, Ford and Iroquois Counties. In Indiana,
Benton, Jasper, Lake IN, Newton, and Porter Counties.
* WHEN...From 3 AM CST Friday to 9 AM CST Saturday.
* IMPACTS...Dangerously cold wind chills could cause frostbite on
exposed skin in as little as 10 to 30 minutes.
From: Jan 22, 2026 17:24
Until: Jan 23, 2026 03:30
Winter Weather Advisory
* WHAT...Snow expected. Total snow accumulations between 2 and 5
inches, highest near the Wisconsin-Illinois state line.
* WHERE...Winnebago, Boone, McHenry, and Lake IL Counties.
* WHEN...From 8 PM this evening to 6 AM CST Wednesday.
* IMPACTS...Be prepared for hazardous travel due to snow covered
roads. The slippery conditions may also impact part of the
Wednesday morning commute.
From: Jan 20, 2026 10:00
Until: Jan 20, 2026 20:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below to 25 below zero.
* WHERE...Portions of central, east central, north central, and
northeast Illinois.
* WHEN...Until noon CST today.
* IMPACTS...The dangerously cold wind chills as low as 25 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 19, 2026 09:03
Until: Jan 19, 2026 18:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below zero.
* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.
* WHEN...Until noon CST /1 PM EST/ today.
* IMPACTS...The dangerously cold wind chills as low as 20 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 19, 2026 09:03
Until: Jan 19, 2026 18:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below zero expected.
* WHERE...Benton, Jasper, Lake IN, Newton, and Porter Counties.
* WHEN...From 3 AM CST /4 AM EST/ to noon CST /1 PM EST/ Monday.
* IMPACTS...The dangerously cold wind chills as low as 20 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 18, 2026 20:19
Until: Jan 19, 2026 12:45
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below to 25 below zero
expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois.
* WHEN...From 3 AM to noon CST Monday.
* IMPACTS...The dangerously cold wind chills as low as 25 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 18, 2026 20:19
Until: Jan 19, 2026 12:45
Special Weather Statement
Strong northwest winds will develop late this evening and
overnight behind an arctic cold front, gusting up to 40 mph. In
addition, scattered wind-whipped snow showers will accompany this
front as it moves east across the region. The most robust snow
showers will result in localized sharply-reduced visibilities as
low as a half mile and quick additional snow accumulations of a
coating up to one inch.
From: Jan 19, 2026 03:40
Until: Jan 19, 2026 07:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below to 25 below zero
expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois.
* WHEN...From 3 AM to 10 AM CST Monday.
* IMPACTS...The dangerously cold wind chills as low as 25 below zero
could cause frostbite on exposed skin in as little as 30 minutes.
From: Jan 18, 2026 16:53
Until: Jan 19, 2026 03:00
Hydrologic Outlook
ESFLOT
Waves of showers and thunderstorms are expected this afternoon and
evening across portions of northeastern Illinois and northwestern
Indiana. The highest rainfall rates are expected this evening as
atmospheric moisture increases to near record levels for January and
a line of showers and thunderstorms moves through the area. Small
isolated corridors may receive rainfall in excess of 1-2 inches,
especially in areas where storms orient in a more southwest to
northeast direction. Rainfall amounts of this magnitude sometimes
cause localized flooding of streams and poor drainage areas during
the winter months. Areas with streets, drainage ditches, and
stormwater drains impacted by late fall and early winter vegetation
debris may be especially susceptible to flooding.
This outlook means that elevated water levels and potential impacts
are possible, but not yet certain, based upon the latest forecasts.
Persons with interests along area streams and rivers should closely
monitor the latest forecasts. In addition, ensure that nearby
stormwater drains and ditches are cleared of debris.
From: Jan 08, 2026 19:57
Until: Jan 09, 2026 06:00
