Special Weather Statement
An elevated risk for fire spread exists this afternoon around
northern Illinois and northwestern Indiana. The combination of dry
air, gusty northwest winds, and recent dry conditions may make
fires difficult to manage and could cause them to spread rapidly.
Use extra caution while burning and disposing of burning materials
today, including leaves and other vegetation.
From: Nov 16, 2025 08:44
Until: Nov 16, 2025 22:00
Winter Weather Advisory
* WHAT...Slippery travel conditions due to lake effect snow
expected. Additional snow accumulations of 1 to 2 inches with
storm total snowfall of 2 to 4 inches expected.
* WHERE...Central Cook County.
* WHEN...Until noon CST today.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
* ADDITIONAL DETAILS...Additional snow is expected later this
morning as a lake effect snow band currently in Wisconsin moves
southward.
From: Nov 10, 2025 10:49
Until: Nov 10, 2025 18:00
Winter Storm Warning
* WHAT...Slippery travel conditions due to lake effect snow
expected. Additional snow accumulations of up to 1 inch with
localized snow totals of 4 to 8 inches expected.
* WHERE...Eastern Will, Northern Cook, and Southern Cook Counties.
* WHEN...Until noon CST today.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.
From: Nov 10, 2025 10:49
Until: Nov 10, 2025 18:00
Winter Weather Advisory
* WHAT...Slippery travel conditions due to lake effect snow
expected. Up to 1 inch of additional snow with storm total
snowfall of 1 to 3 inches expected.
* WHERE...DuPage, Northern Will, and Southern Will Counties.
* WHEN...Until noon CST today.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
From: Nov 10, 2025 10:49
Until: Nov 10, 2025 18:00
Winter Storm Warning
* WHAT...Locally dangerous travel conditions due to lake effect snow
expected. Additional snow accumulations of 1 to 2 inches with
storm total snowfall of 4 to 8 inches east of Interstate 94
expected.
* WHERE...Lake IL County.
* WHEN...Until 9 AM CST this morning.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
From: Nov 10, 2025 10:49
Until: Nov 10, 2025 15:00
Winter Weather Advisory
* WHAT...Slippery travel conditions due to lake effect snow
expected. Snow rates of up to an inch per hour and total snow
accumulations ranging from 1 to 3 inches in the lesser hit areas
to 3 to 6 inches expected in the hardest hit areas.
* WHERE...DuPage, Northern Will, and Southern Will Counties.
* WHEN...Until noon CST Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. The highest snow accumulations are expected east of
Interstate 355 and especially toward Cook County.
From: Nov 10, 2025 03:16
Until: Nov 10, 2025 13:30
Winter Storm Warning
* WHAT...Dangerous to nearly nearly impossible travel conditions due
to intense lake effect snow expected. Snow rates in excess of 3
inches per hour accompanied by northerly winds gusting to over 30
mph resulting in blowing and drifting snow. Total snow
accumulations will vary considerably across the county ranging
from 2 to 4 inches in the lesser hit areas to locally 5 to 10
inches in the hardest hit areas with isolated higher totals
possible.
* WHERE...Central Cook, Eastern Will, Northern Cook, and Southern
Cook Counties.
* WHEN...Until noon CST Monday.
* IMPACTS...Snow rates in excess of 3 inches per hour will cripple
travel, including during the Monday morning commute in some areas.
Strong northerly wind gusts in excess of 30 mph will lead to
greatly reduced visibility, especially near the Lake Michigan
shoreline.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. Snow totals in the Winter Storm Warning area may vary
considerably from one location to the next.
From: Nov 10, 2025 03:16
Until: Nov 10, 2025 13:30
Winter Storm Warning
* WHAT...Dangerous to nearly impossible travel conditions will
develop across parts of the county overnight due to intense lake
effect snow. Snow rates in excess of 3 inches per hour accompanied
by wind gusts over 30 mph leading to blowing and drifting snow.
Total accumulations will range from 1 to 4 inches over western
Lake County to 4 to 8 inches near the lake, with isolated totals
over 8 inches possible.
* WHERE...Lake IL County.
* WHEN...Until 6 AM CST Monday.
* IMPACTS...Snow rates in excess of 3 inches per hour may temporally
cripple travel across portions of the county. Strong northerly
wind gusts in excess of 30 mph may lead to greatly reduced
visibility, especially near the Lake Michigan shoreline.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. The highest snow totals, are expected near and east of
Interstate 94 with considerably less snow on the western side of
the county.
From: Nov 10, 2025 03:16
Until: Nov 10, 2025 12:00
Winter Storm Warning
* WHAT...Dangerous to impossible travel conditions due to intense
lake effect snow expected. Snow rates in excess of 3 inches per
hour, localized total snow accumulations of 12 to 18 inches, and
northerly wind gusts in excess of 30 mph are expected.
* WHERE...Central Cook, Eastern Will, Northern Cook, and Southern
Cook Counties.
* WHEN...From 9 PM this evening to noon CST Monday.
* IMPACTS...Snow rates in excess of 3 inches per hour will cripple
travel, including during the Monday morning commute. Strong
northerly wind gusts in excess of 30 mph will lead to greatly
reduced visibility, especially near the Lake Michigan shoreline.
Periods of thundersnow will occur, as well.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. Snow totals in the Winter Storm Warning area may vary
considerably from one location to the next.
From: Nov 09, 2025 08:24
Until: Nov 09, 2025 18:30
Winter Weather Advisory
* WHAT...Slippery travel conditions due to lake effect snow
expected. Snow rates of 1 to 2 inches per hour and localized snow
accumulations of 2 to 6 inches expected.
* WHERE...DuPage, Northern Will, and Southern Will Counties.
* WHEN...From 9 PM this evening to noon CST Monday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Monday morning commute.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. The highest snow accumulations are expected east of
Interstate 355 and especially toward Cook County.
From: Nov 09, 2025 08:24
Until: Nov 09, 2025 18:30
Winter Storm Watch
* WHAT...Dangerous to impossible travel conditions due to intense
lake effect snow possible. Snow rates in excess of 3 inches per
hour, localized snow accumulations in excess of 12 inches, and
northerly wind gusts in excess of 30 mph are possible.
* WHERE...Lake IL County.
* WHEN...From this evening through late tonight.
* IMPACTS...Snow rates in excess of 3 inches per hour may cripple
travel. Strong northerly wind gusts in excess of 30 mph may lead
to greatly reduced visibility, especially near the Lake Michigan
shoreline.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. The highest snow totals, should the lake effect snow impact
Lake County, would occur near and east of Interstate 94 with
considerably less snow on the western side of the county.
From: Nov 09, 2025 08:24
Until: Nov 09, 2025 18:30
Winter Storm Watch
* WHAT...Locally very dangerous travel conditions due to lake effect
snow, including the potential for thundersnow capable of producing
snowfall rates greater than 3 inches per hour possible. Localized
storm total snowfall well in excess of 6 inches possible.
* WHERE...Central Cook, Eastern Will, Northern Cook, and Southern
Cook Counties.
* WHEN...From late Sunday night through Monday morning.
* IMPACTS...Roads will become snow covered and travel extremely
hazardous underneath the more intense snow bands.
* ADDITIONAL DETAILS...Strong northerly winds will gust to around 35
mph at times, resulting in some blowing and drifting snow.
From: Nov 09, 2025 03:42
Until: Nov 09, 2025 13:45
Winter Storm Watch
* WHAT...Dangerous travel conditions due to intense lake effect snow
possible. Localized snow rates in excess of 2 inches per hour,
event snow totals in excess of 6 inches, and northerly wind gusts
in excess of 35 mph are possible.
* WHERE...Central Cook, Northern Cook, and Southern Cook Counties.
* WHEN...From late Sunday night through Monday morning.
* IMPACTS...Untreated roads, and especially bridges and overpasses,
may become slick and hazardous. The combination of snow rates in
excess of 2 inches per hour and northerly wind gusts in excess of
35 mph may greatly reduce visibility, especially along the Lake
Michigan shoreline.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. The worst conditions are expected late Sunday night through
Monday morning, affecting the Monday morning commute.
From: Nov 08, 2025 19:06
Until: Nov 09, 2025 05:15
Winter Storm Watch
* WHAT...Dangerous travel conditions due to intense lake effect snow
possible. Localized snow rates in excess of 2 inches per hour,
event snow totals in excess of 6 inches, and northerly wind gusts
in excess of 35 mph are possible.
* WHERE...Eastern Will County.
* WHEN...From late Sunday night through Monday morning.
* IMPACTS...Untreated roads, and especially bridges and overpasses,
may become slick and hazardous. The combination of snow rates in
excess of 2 inches per hour and northerly wind gusts in excess of
35 mph may greatly reduce visibility.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles. The worst conditions are expected late Sunday night through
Monday morning, affecting the Monday morning commute.
From: Nov 08, 2025 19:06
Until: Nov 09, 2025 05:15
Winter Storm Watch
* WHAT...Dangerous travel conditions due to intense lake effect snow
possible. Localized snow rates in excess of 2 inches per hour,
event snow totals in excess of 6 inches, and northerly wind gusts
in excess of 35 mph are possible.
* WHERE...Central Cook, Northern Cook, and Southern Cook Counties.
* WHEN...From late Sunday night through Monday morning.
* IMPACTS...Untreated roads, and especially bridges and overpasses,
may become slick and hazardous. The combination of snow rates in
excess of 2 inches per hour and northerly wind gusts in excess of
35 mph may greatly reduce visibility, especially along the Lake
Michigan shoreline.
* ADDITIONAL DETAILS...Lake effect snow is often very localized,
with conditions varying from safe to dangerous across just a few
miles.
From: Nov 08, 2025 08:53
Until: Nov 09, 2025 02:00
Special Weather Statement
Fog will locally reduce visibilities under one half mile through
mid-morning east of Interstate 39 and west of the Fox River
Valley. If you are traveling, be prepared for rapid changes in
visibility over short distances, and use low-beam headlights. The
fog will dissipate by 9 AM.
From: Oct 30, 2025 11:55
Until: Oct 30, 2025 14:00
Freeze Warning
* WHAT...Sub-freezing temperatures as low as 29 degrees expected
away from Lake Michigan.
* WHERE...In Illinois, Lake IL and Northern Cook Counties. In
Indiana, Lake IN County.
* WHEN...From 1 AM to 8 AM CDT Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Oct 23, 2025 19:57
Until: Oct 24, 2025 13:00
Frost Advisory
* WHAT...Temperatures as low as 32 degrees will result in frost
formation away from Lake Michigan.
* WHERE...In Illinois, Southern Cook County. In Indiana, Porter
County.
* WHEN...From 1 AM to 8 AM CDT Friday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 23, 2025 19:57
Until: Oct 24, 2025 13:00
Freeze Warning
* WHAT...Sub-freezing temperatures as low as the upper 20s expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 24, 2025 02:21
Until: Oct 24, 2025 13:00
Freeze Warning
* WHAT...Sub-freezing temperatures as low as the upper 20s expected.
* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.
* WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Oct 23, 2025 19:57
Until: Oct 24, 2025 06:00
Freeze Warning
* WHAT...Sub-freezing temperatures as low as 28 expected.
* WHERE...In Illinois, DuPage, Eastern Will, Kane, Kendall, McHenry,
Northern Will, and Southern Will Counties. In Indiana, Benton,
Jasper, and Newton Counties.
* WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Oct 23, 2025 08:07
Until: Oct 23, 2025 18:15
Frost Advisory
* WHAT...Temperatures as low as 30 will result in frost formation
away from Lake Michigan.
* WHERE...In Illinois, Southern Cook County. In Indiana, Porter
County.
* WHEN...From 1 AM to 8 AM CDT Friday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 23, 2025 08:07
Until: Oct 23, 2025 18:15
Frost Advisory
* WHAT...For the Frost Advisory, temperatures as low as 30 will
result in frost formation. For the Freeze Warning, sub-freezing
temperatures as low as 27 expected.
* WHERE...Livingston, Ford, Iroquois, Boone, De Kalb, La Salle, Lee,
Ogle, Winnebago, Grundy, and Kankakee Counties.
* WHEN...For the Frost Advisory, until 9 AM CDT this morning. For
the Freeze Warning, from 1 AM to 8 AM CDT Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 23, 2025 08:07
Until: Oct 23, 2025 18:15
Freeze Warning
* WHAT...Sub-freezing temperatures as low as 30 expected away from
Lake Michigan.
* WHERE...In Illinois, Lake IL and Northern Cook Counties. In
Indiana, Lake IN County.
* WHEN...From 1 AM to 8 AM CDT Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Oct 23, 2025 08:07
Until: Oct 23, 2025 18:15
Freeze Warning
* WHAT...For the Frost Advisory, temperatures as low as 30 will
result in frost formation. For the Freeze Warning, sub-freezing
temperatures as low as 27 expected.
* WHERE...Livingston, Ford, Iroquois, Boone, De Kalb, La Salle, Lee,
Ogle, Winnebago, Grundy, and Kankakee Counties.
* WHEN...For the Frost Advisory, until 9 AM CDT this morning. For
the Freeze Warning, from 1 AM to 8 AM CDT Friday.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing. Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 23, 2025 08:07
Until: Oct 23, 2025 18:15
Frost Advisory
* WHAT...Temperatures as low as 30 will result in frost formation.
* WHERE...Livingston, Ford, Iroquois, Boone, De Kalb, La Salle, Lee,
Ogle, Winnebago, Grundy, and Kankakee Counties.
* WHEN...Until 9 AM CDT Thursday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 23, 2025 02:07
Until: Oct 23, 2025 13:15
Frost Advisory
* WHAT...Temperatures as low as 30 will result in frost formation.
* WHERE...Livingston, Ford, Iroquois, Boone, De Kalb, La Salle, Lee,
Ogle, Winnebago, Grundy, and Kankakee Counties.
* WHEN...From midnight tonight to 9 AM CDT Thursday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Oct 22, 2025 07:41
Until: Oct 23, 2025 05:45
Special Weather Statement
Southwest winds gusting up to 30 mph, unseasonably warm
temperatures, low relative humidities, and dry vegetation will
result in a heightened risk of grass, brush, and field fires this
afternoon.
Any fires that ignite may become difficult to control due to the
strong winds and dry conditions. Outdoor burning is strongly
discouraged. Please heed any local burn bans. Take care to prevent
the start of accidental fires when handling cigarettes or
operating vehicles and farm equipment around dry vegetation or
crops.
Additionally, the gusty winds may cause dust from harvesting
activities to be blown around, resulting in localized sharp
visibility reductions. Motorists are advised to use caution when
driving near farmland, particularly on east-west roads in open
areas.
From: Oct 05, 2025 08:18
Until: Oct 05, 2025 23:00
