Illinois, 2026

Winter Weather in Illinois, January 21, 2026

January 21, 2026 · NWS PAH · 9 events in 9 counties and zones

A light wintry mix developed during the early morning hours of the 21st across portions of southern Illinois. Temperatures were highly variable across the region between 32-36 degrees, but colder ground temperatures allowed for areas of light freezing rain to develop before temperatures quickly warmed that day, resulting in slippery and icy conditions on roadways.

Where it happened

Every event with a place to put it; 9 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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  • Other

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The toll

Deaths
0
Injuries
0
Property damage
$10,000
Crop damage
None recorded
Events
9

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 light wintry mix developed during the early morning hours of the 21st across portions of southern Illinois. Temperatures were highly variable across the region between 32-36 degrees, but colder ground temperatures allowed for areas of light freezing rain to develop before temperatures quickly warmed that day, resulting in slippery and icy conditions on roadways. Roads were particularly bad near Glendale in Pope County, IL. Ice on rural roadways in Saline County, IL caused one vehicle to overturn with a person trapped. Key Impacts: transportation delays, traffic accidents.

The radar

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

Open the radar archive at this moment

Event by event

9 winter weather. Local standard time, as filed.

Winter Weather, Alexander

When
January 21, 3:00 AM CST to 7:00 AM CST
Where
Alexander forecast zone
Reported by
ASOS
Coordinates
37.192, -89.338 (the zone’s center; the record gives no point)

Winter Weather, Pulaski

When
January 21, 3:00 AM CST to 7:00 AM CST
Where
Pulaski forecast zone
Reported by
ASOS
Coordinates
37.223, -89.127 (the zone’s center; the record gives no point)

Winter Weather, Union

When
January 21, 3:00 AM CST to 7:00 AM CST
Where
Union forecast zone
Reported by
ASOS
Coordinates
37.471, -89.255 (the zone’s center; the record gives no point)

Winter Weather, Massac

When
January 21, 4:00 AM CST to 8:00 AM CST
Where
Massac forecast zone
Reported by
ASOS
Coordinates
37.219, -88.708 (the zone’s center; the record gives no point)

Winter Weather, Johnson

When
January 21, 4:00 AM CST to 8:00 AM CST
Where
Johnson forecast zone
Reported by
ASOS
Coordinates
37.460, -88.881 (the zone’s center; the record gives no point)

Winter Weather, Pope

When
January 21, 4:00 AM CST to 8:00 AM CST
Where
Pope forecast zone
Reported by
Public
Coordinates
37.413, -88.562 (the zone’s center; the record gives no point)

Winter Weather, Hardin

When
January 21, 4:00 AM CST to 8:00 AM CST
Where
Hardin forecast zone
Reported by
AWOS
Coordinates
37.518, -88.267 (the zone’s center; the record gives no point)

Winter Weather, Saline

When
January 21, 4:00 AM CST to 8:00 AM CST
Where
Saline forecast zone
Property damage
$10,000
Reported by
Law Enforcement
Coordinates
37.753, -88.541 (the zone’s center; the record gives no point)

Winter Weather, Gallatin

When
January 21, 4:00 AM CST to 8:00 AM CST
Where
Gallatin forecast zone
Reported by
AWOS
Coordinates
37.763, -88.230 (the zone’s center; the record gives no point)

What these are

Winter Weather
Snow, sleet or freezing rain below warning levels that still caused disruption, damage or casualties.

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: 1311645, 1311646, 1311649, 1311647, 1311651, 1311652, 1311654, 1311655, 1311657.