Alert archive / Illinois / Freeze Warnings / 2026
Freeze Warnings in Illinois, April 2026
4 freeze warnings in April 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in April 2026. Tap one for its archive.
- Freeze Warnings
- 4
- Busiest day
- April 19, 20263 freeze warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Apr 6, 2:25 PM CDT | Freeze Warning | ILX | Champaign, DeWitt, Douglas, Edgar, McLean, Peoria and 4 more | 18 hr |
| Apr 19, 1:28 AM CDT | Freeze Warning | ILX | Champaign, DeWitt, Douglas, Edgar, Fulton, Knox and 10 more | 31 hr |
| Apr 19, 1:52 AM CDT | Freeze Warning | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 30 hr |
| Apr 19, 2:10 AM CDT | Freeze Warning | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 30 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Champaign County2
- DeWitt County2
- Douglas County2
- Edgar County2
- McLean County2
- Peoria County2
- Piatt County2
- Tazewell County2
- Vermilion County2
- Woodford County2
- Fulton County1
- Knox County1
- Logan County1
- Marshall County1
- Mason County1
- Stark County1
- Boone County1
- Cook County1
- DeKalb County1
- DuPage County1
- Ford County1
- Grundy County1
- Iroquois County1
- Kane County1
- Kankakee County1
- Kendall County1
- Lake County1
- LaSalle County1
- Lee County1
- Livingston County1
- McHenry County1
- Ogle County1
- Will County1
- Winnebago County1
- Bureau County1
- Carroll County1
- Hancock County1
- Henderson County1
- Henry County1
- Jo Daviess County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.