Illinois winter weather advisories
There are no winter weather advisories in Illinois right now. The last one was issued on November 13, 2026.
Snow, sleet or freezing rain will make roads slippery and cause travel delays, but stay below warning levels.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
Active winter weather advisories in Illinois
None right now. Other active alerts in Illinois: none.
Winter Weather Advisories in Illinois by year
Illinois averaged 57.6 winter weather advisories per year from 2016 to 2025, and has had 19 so far in 2026. The most recent was issued on November 13, 2026.
Counties with the most winter weather advisories
| County | 2016–2025 |
|---|---|
| Henry County | 101 |
| DeKalb County | 100 |
| Cook County | 100 |
| Stephenson County | 98 |
| Carroll County | 98 |
| Mercer County | 96 |
| Rock Island County | 96 |
| Jo Daviess County | 95 |
| Kane County | 95 |
| Lee County | 95 |
What a winter weather advisory means
A winter weather advisory is issued for winter precipitation that is expected to cause significant inconvenience: slick roads, slower commutes and possible school delays. Totals stay below the local winter storm warning criteria, but even light freezing rain or a thin coat of snow can cause many crashes.
More about winter weather advisories and the national map →
What to do
- Leave extra time and slow down on bridges and overpasses.
- Keep a scraper, blanket and phone charger in your car.
More Illinois alerts
- Tornado Warnings
- Tornado Watches
- Severe Thunderstorm Warnings
- Flash Flood Warnings
- Flood Warnings
- Flood Watches
- Winter Storm Warnings
- Winter Storm Watches
- Cold Weather Advisories
- Freeze Warnings
- Frost Advisories
- Heat Advisories
- Extreme Heat Warnings
- High Wind Warnings
- Wind Advisories
- Red Flag Warnings
- Dense Fog Advisories
- All Illinois alerts