Winter Weather Advisory, Illinois

Moderate

Another 1 to 3 inches of snow. Plan on slippery road conditions.

Ended Wednesday, January 21, 2026.

Issued: Tuesday, January 20, 2:45 in the morning
Expires: Wednesday, January 21, 6 in the morning
Updated: January 21, 2026

Places in this advisory

How much

Snow across the area: Another 1 to 3 inches

Map

This advisory
Interstates
US highways

Alert area: National Weather Service. Borders and highways: U.S. Census Bureau. Lakes, rivers and other countries: Natural Earth. Open this area in OpenStreetMap

Details from the National Weather Service

What: Snow. Additional snow accumulations between 1 and 3 inches.
Where: Portions of northwest Illinois and east central and northeast Iowa.
When: Until 6 in the morning Wednesday.
Impacts: Plan on slippery road conditions.

Updates

Wednesday 2:12 in the morning
Cancelled by the National Weather Service. January 21, 2026
Tuesday 9:34 at night
Snow totals lowered from 2 to 4 inches to 1 to 3 inches. January 20, 2026
Tuesday 2:17 in the afternoon
Area expanded. January 20, 2026
Tuesday 10:41 in the morning
Reissued with no change to the times or amounts. January 20, 2026
Tuesday 2:45 in the morning
Winter Weather Advisory issued for Tuesday evening through Wednesday morning. January 20, 2026