Alert archive / Illinois / Extreme Cold Warnings
Extreme Cold Warnings in Illinois, 2026
6 extreme cold warnings in 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of extreme cold warnings reaches back to 2005.
Extreme Cold Warnings by county
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Extreme Cold Warnings
- 6
- Busiest month
- January6 extreme cold warnings
- Busiest day
- January 22, 20263 extreme cold warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 22, 2:19 AM CST | Extreme Cold Warning | ILX | Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more | 34 hr |
| Jan 22, 2:38 AM CST | Extreme Cold Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 33 hr |
| Jan 22, 3:12 AM CST | Extreme Cold Warning | LOT | Boone, Cook, DeKalb, DuPage, Grundy, Kane and 10 more | 33 hr |
| Jan 24, 10:12 AM CST | Extreme Cold Warning | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 72 hr |
| Jan 25, 1:52 AM CST | Extreme Cold Warning | ILX | Champaign, Christian, Clark, Clay, Coles, Crawford and 19 more | 34 hr |
| Jan 25, 1:55 AM CST | Extreme Cold Warning | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 8 more | 34 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- McLean County2
- Fulton County1
- Knox County1
- Marshall County1
- Peoria County1
- Stark County1
- Tazewell County1
- Woodford County1
- Bureau County1
- Carroll County1
- Hancock County1
- Henderson County1
- Henry County1
- Jo Daviess County1
- McDonough County1
- Mercer County1
- Putnam County1
- Rock Island County1
- Stephenson County1
- Warren County1
- Whiteside County1
- Boone County1
- Cook County1
- DeKalb County1
- DuPage County1
- Grundy County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- LaSalle County1
- Lee County1
- Livingston County1
- McHenry County1
- Ogle County1
- Will County1
- Winnebago County1
- Alexander County1
- Edwards County1
- Franklin County1
54 more counties
- Gallatin County1
- Hamilton County1
- Hardin County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Massac County1
- Perry County1
- Pope County1
- Pulaski County1
- Saline County1
- Union County1
- Wabash County1
- Wayne County1
- White County1
- Williamson County1
- Champaign County1
- Christian County1
- Clark County1
- Clay County1
- Coles County1
- Crawford County1
- Cumberland County1
- DeWitt County1
- Douglas County1
- Edgar County1
- Effingham County1
- Jasper County1
- Lawrence County1
- Logan County1
- Macon County1
- Menard County1
- Morgan County1
- Moultrie County1
- Piatt County1
- Richland County1
- Sangamon County1
- Scott County1
- Shelby County1
- Vermilion County1
- Bond County1
- Calhoun County1
- Clinton County1
- Fayette County1
- Greene County1
- Jersey County1
- Macoupin County1
- Madison County1
- Marion County1
- Monroe County1
- Montgomery County1
- Randolph County1
- Saint Clair County1
- Washington County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.