Illinois, 2026

Extreme Cold and Cold in Illinois, January 25 to 27, 2026

January 25 to 27, 2026 · NWS PAH · 19 events in 19 counties and zones

A cold air mass with sub-freezing temperatures that originated from Siberia was reinforced by a major winter storm that brought a snowpack across portions of southern Illinois on the 25th. Breezy west to northwest winds with occasional gusts around 20 mph caused dangerous intervals of wind chills between -15 to locally -18 in Williamson County, IL on the 26th.

Where it happened

Every event with a place to put it; 19 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
19

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PAH wrote it up.

A cold air mass with sub-freezing temperatures that originated from Siberia was reinforced by a major winter storm that brought a snowpack across portions of southern Illinois on the 25th. Breezy west to northwest winds with occasional gusts around 20 mph caused dangerous intervals of wind chills between -15 to locally -18 in Williamson County, IL on the 26th. Northwest portions of southern Illinois and areas south of route 13 only experienced advisory criteria with values of -9 to -14. Dangerous wind chills eventually came to an end during the early morning hours of the 27th. The one exception was in Alexander, Pulaski, and Massac County, IL where wind chills warmed above -5 the morning of the 26th due to calmer winds.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

12 cold/wind chill, 7 extreme cold/wind chill. Local standard time, as filed.

Extreme Cold/Wind Chill, Wabash

When
January 25, 9:00 PM CST to January 27, 5:00 AM CST
Where
Wabash forecast zone
Reported by
AWOS
Coordinates
38.446, -87.844 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Saline

When
January 25, 9:00 PM CST to January 27, 1:00 AM CST
Where
Saline forecast zone
Reported by
AWOS
Coordinates
37.753, -88.541 (the zone’s center; the record gives no point)

Cold/Wind Chill, Jackson

When
January 25, 10:00 PM CST to January 27, 1:00 AM CST
Where
Jackson forecast zone
Reported by
ASOS
Coordinates
37.785, -89.382 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Gallatin

When
January 25, 10:00 PM CST to January 27, 3:00 AM CST
Where
Gallatin forecast zone
Reported by
AWOS
Coordinates
37.763, -88.230 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Edwards

When
January 25, 11:00 PM CST to January 27, 5:00 AM CST
Where
Edwards forecast zone
Reported by
AWOS
Coordinates
38.417, -88.053 (the zone’s center; the record gives no point)

Cold/Wind Chill, Perry

When
January 26, 12:00 AM CST to January 27, 2:00 AM CST
Where
Perry forecast zone
Reported by
AWOS
Coordinates
38.084, -89.367 (the zone’s center; the record gives no point)

Cold/Wind Chill, Franklin

When
January 26, 12:00 AM CST to January 27, 2:00 AM CST
Where
Franklin forecast zone
Reported by
AWOS
Coordinates
37.992, -88.924 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, White

When
January 26, 12:00 AM CST to January 27, 4:00 AM CST
Where
White forecast zone
Reported by
AWOS
Coordinates
38.088, -88.180 (the zone’s center; the record gives no point)

Cold/Wind Chill, Union

When
January 26, 12:00 AM CST to January 27, 2:00 AM CST
Where
Union forecast zone
Reported by
AWOS
Coordinates
37.471, -89.255 (the zone’s center; the record gives no point)

Cold/Wind Chill, Johnson

When
January 26, 12:00 AM CST to January 27, 2:00 AM CST
Where
Johnson forecast zone
Reported by
AWOS
Coordinates
37.460, -88.881 (the zone’s center; the record gives no point)

Cold/Wind Chill, Pope

When
January 26, 1:00 AM CST to January 27, 3:00 AM CST
Where
Pope forecast zone
Reported by
AWOS
Coordinates
37.413, -88.562 (the zone’s center; the record gives no point)

Cold/Wind Chill, Hardin

When
January 26, 1:00 AM CST to January 27, 3:00 AM CST
Where
Hardin forecast zone
Reported by
AWOS
Coordinates
37.518, -88.267 (the zone’s center; the record gives no point)

Cold/Wind Chill, Jefferson

When
January 26, 2:00 AM CST to January 27, 4:00 AM CST
Where
Jefferson forecast zone
Reported by
AWOS
Coordinates
38.301, -88.924 (the zone’s center; the record gives no point)

Cold/Wind Chill, Wayne

When
January 26, 2:00 AM CST to January 27, 4:00 AM CST
Where
Wayne forecast zone
Reported by
AWOS
Coordinates
38.430, -88.426 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Hamilton

When
January 26, 3:00 AM CST to January 27, 3:00 AM CST
Where
Hamilton forecast zone
Reported by
AWOS
Coordinates
38.082, -88.539 (the zone’s center; the record gives no point)

Extreme Cold/Wind Chill, Williamson

When
January 26, 3:00 AM CST to January 27, 3:00 AM CST
Where
Williamson forecast zone
Reported by
AWOS
Coordinates
37.730, -88.930 (the zone’s center; the record gives no point)

Cold/Wind Chill, Alexander

When
January 26, 4:00 AM CST to 10:00 AM CST
Where
Alexander forecast zone
Reported by
AWOS
Coordinates
37.192, -89.338 (the zone’s center; the record gives no point)

Cold/Wind Chill, Pulaski

When
January 26, 4:00 AM CST to 10:00 AM CST
Where
Pulaski forecast zone
Reported by
AWOS
Coordinates
37.223, -89.127 (the zone’s center; the record gives no point)

Cold/Wind Chill, Massac

When
January 26, 4:00 AM CST to 11:00 AM CST
Where
Massac forecast zone
Reported by
ASOS
Coordinates
37.219, -88.708 (the zone’s center; the record gives no point)

What these are

Extreme Cold/Wind Chill
Temperatures or wind chills at or below the local warning criteria, or cold that caused deaths.
Cold/Wind Chill
Cold or wind chill below warning criteria that caused deaths, injuries or damage.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Illinois in 2026Every state in 2026This day in weather historyWarnings in Illinois, January 2026

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1307873, 1307885, 1307883, 1307887, 1307864, 1307878, 1307879, 1307882, 1307888, 1307890, 1307891, 1307892, 1307853, 1307854, 1307881, 1307884, 1307894, 1307896, 1307897.