Red Flag Warning
* AFFECTED AREA...Portions of central, east central, northeast, south
central, and southeast Missouri.
* TIMING...From noon to 8 PM CST Thursday.
* WINDS...Southwest winds 10 to 20 mph with gusts up to 35 mph.
* RELATIVE HUMIDITY...Relative Humidity between 15 to 25 percent.
* IMPACTS...Any fires that develop will spread rapidly. Outdoor
burning is not recommended.
From: Feb 19, 2026 06:57
Until: Feb 20, 2026 02:00
Dense Fog Advisory
* WHAT...Visibility reduced to one quarter mile or less at times in
dense fog.
* WHERE...Portions of south central and southwest Illinois and east
central Missouri.
* WHEN...Until 9 AM CST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Feb 19, 2026 10:23
Until: Feb 19, 2026 15:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 1 and 2
inches.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Plan on slippery road conditions.
From: Jan 25, 2026 12:05
Until: Jan 26, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations up to two inches.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Plan on slippery road conditions.
From: Jan 25, 2026 15:29
Until: Jan 26, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 1 and 4
inches.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Plan on slippery road conditions.
From: Jan 25, 2026 12:05
Until: Jan 26, 2026 00:00
Winter Storm Warning
* WHAT...Heavy snow. Additional snow accumulations between 1 and 3
inches.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...Until 6 PM CST this evening.
* IMPACTS...Plan on slippery road conditions.
From: Jan 25, 2026 15:29
Until: Jan 26, 2026 00:00
Extreme Cold Warning
* WHAT...Dangerously cold wind chills of 15 to 25 below expected.
Actual temperatures may reach 5 to 10 degrees below zero as well.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From midnight 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 25, 2026 07:55
Until: Jan 25, 2026 23:00
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 below zero.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...Until noon CST Saturday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could result in hypothermia or frostbite if precautions are not
taken.
From: Jan 23, 2026 19:31
Until: Jan 24, 2026 10:45
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 20 below zero.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...Until noon CST Saturday.
* 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 23, 2026 19:31
Until: Jan 24, 2026 10:45
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 4 and
7 inches.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...From 9 AM Saturday to 6 PM CST Sunday.
* IMPACTS...Travel could be very difficult.
From: Jan 23, 2026 08:24
Until: Jan 24, 2026 10:30
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 6 and
12 inches.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From midnight tonight to 6 PM CST Sunday.
* IMPACTS...Travel could be very difficult to impossible.
From: Jan 23, 2026 19:30
Until: Jan 24, 2026 10:30
Cold Weather Advisory
* WHAT...Very cold wind chills between 15 and 25 below expected.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...Until noon CST Saturday.
* 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 23, 2026 08:30
Until: Jan 23, 2026 23:30
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 5 and
10 inches with locally higher amounts possible.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From midnight tonight to 6 PM CST Sunday.
* IMPACTS...Travel could be very difficult to impossible.
From: Jan 23, 2026 08:24
Until: Jan 23, 2026 23:30
Cold Weather Advisory
* WHAT...Very cold wind chills between 10 and 15 below expected.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From midnight tonight to noon CST Saturday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could result in hypothermia or frostbite if precautions are not
taken.
From: Jan 23, 2026 08:30
Until: Jan 23, 2026 23:30
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 23 below expected.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...From 3 AM Friday to noon CST Saturday.
* 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 22, 2026 19:16
Until: Jan 23, 2026 10:30
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 below expected.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From midnight Friday Night to noon CST Saturday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could result in hypothermia or frostbite if precautions are not
taken.
From: Jan 22, 2026 19:16
Until: Jan 23, 2026 10:30
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 below expected.
* WHERE...In Illinois, Bond IL, Fayette IL, and Madison IL Counties.
In Missouri, Boone MO County.
* WHEN...From 3 AM Friday to noon CST Saturday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could result in hypothermia or frostbite if precautions are not
taken.
From: Jan 22, 2026 19:16
Until: Jan 23, 2026 10:30
Winter Storm Watch
* WHAT...Heavy snow possible. Total snow accumulations between 3 and
7 inches possible.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, and northeast Missouri.
* WHEN...From late Friday night through Sunday afternoon.
* IMPACTS...Travel could be very difficult.
From: Jan 22, 2026 19:15
Until: Jan 23, 2026 10:15
Winter Storm Warning
* WHAT...Heavy snow expected. Total snow accumulations between 5 and
10 inches with locally higher amounts possible.
* WHERE...Portions of south central and southwest Illinois and
central, east central, and southeast Missouri.
* WHEN...From midnight Friday Night to 6 PM CST Sunday.
* IMPACTS...Travel could be very difficult to impossible.
From: Jan 22, 2026 19:15
Until: Jan 23, 2026 10:15
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 15 below expected.
* WHERE...Portions of south central, southwest, and west central
Illinois and northeast Missouri.
* WHEN...From 3 AM to 10 AM CST Monday.
* IMPACTS...The dangerously cold wind chills as low as 15 below zero
could result in hypothermia or frostbite if precautions are not
taken.
From: Jan 18, 2026 19:36
Until: Jan 19, 2026 10:45
Cold Weather Advisory
* WHAT...Very cold wind chills as low as 11 below expected.
* WHERE...Bond IL, Clinton IL, Fayette IL, Marion IL, and Madison IL
Counties.
* WHEN...From 3 AM to 10 AM CST Monday.
* IMPACTS...The cold wind chills as low as 10 below zero could result
in hypothermia or frostbite if precautions are not taken.
From: Jan 18, 2026 19:36
Until: Jan 19, 2026 10:45
Cold Weather Advisory
* WHAT...Very cold wind chills between 10 and 20 below expected.
* WHERE...In Illinois, Clinton IL, Washington IL, Monroe IL,
Randolph IL, and Saint Clair IL Counties. In Missouri, Lincoln MO,
Saint Charles MO, Saint Louis City MO, and Saint Louis MO Counties.
* WHEN...From 9 PM this evening to noon CST Sunday.
* IMPACTS...The cold wind chills as low as 10 below zero could
result in hypothermia or frostbite if precautions are not taken.
From: Dec 14, 2025 03:00
Until: Dec 14, 2025 18:00
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of south central, southwest, and west central
Illinois and east central, northeast, and southeast Missouri.
* WHEN...Until 9 AM CST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Nov 24, 2025 12:17
Until: Nov 24, 2025 15:00
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of south central, southwest, and west central
Illinois and central, east central, northeast, and southeast
Missouri.
* WHEN...Until 9 AM CST Monday.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Nov 23, 2025 23:41
Until: Nov 24, 2025 14:45
Freeze Watch
* WHAT...Sub-freezing temperatures as low as 30 possible.
* WHERE...Portions of south central and southwest Illinois and east
central and southeast Missouri.
* WHEN...From late Saturday night through Sunday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Nov 02, 2025 08:00
Until: Nov 02, 2025 13:00
