Alert archive / Illinois / Tornado Watches / 2026
Tornado Watches in Illinois, April 2026
13 tornado watches 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 tornado watches reaches back to 1997.
Tornado Watches by county
Each county as a circle sized by its count in April 2026. Tap one for its archive.
- Tornado Watches
- 13
- Busiest day
- April 27, 20264 tornado watches
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 2, 1:43 PM CDT | Tornado Watch | SPC | Adams, Boone, Brown, Bureau, Carroll, Cass and 37 more | 8 hr |
| Apr 3, 2:20 PM CDT | Tornado Watch | SPC | Adams, Brown, Hancock, Henderson, McDonough, Warren | 6 hr |
| Apr 3, 5:18 PM CDT | Tornado Watch | SPC | Cass, Ford, Fulton, Iroquois, Knox, Livingston and 9 more | 4 hr |
| Apr 14, 2:33 PM CDT | Tornado Watch | SPC | Boone, Carroll, Cook, DeKalb, DuPage, Henry and 11 more | 9 hr |
| Apr 15, 3:40 PM CDT | Tornado Watch | SPC | Carroll, Hancock, Henderson, Henry, Jo Daviess, McDonough and 5 more | 6 hr |
| Apr 15, 6:50 PM CDT | Tornado Watch | SPC | Adams, Brown, Calhoun, Jersey, Madison, Monroe and 2 more | 4 hr |
| Apr 17, 12:40 PM CDT | Tornado Watch | SPC | Boone, Bureau, Carroll, DeKalb, Hancock, Henderson and 14 more | 9 hr |
| Apr 17, 3:31 PM CDT | Tornado Watch | SPC | Adams, Bond, Brown, Calhoun, Cass, Champaign and 50 more | 8 hr |
| Apr 27, 12:50 PM CDT | Tornado Watch | SPC | Bond, Calhoun, Clinton, Edwards, Fayette, Franklin and 17 more | 9 hr |
| Apr 27, 12:51 PM CDT | Tornado Watch | SPC | Champaign, Christian, Clark, Clay, Coles, Crawford and 15 more | 4 hr |
| Apr 27, 2:46 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
| Apr 27, 4:41 PM CDT | Tornado Watch | SPC | Cass, Champaign, Christian, Clark, Clay, Coles and 20 more | 6 hr |
| Apr 27, 9:48 PM CDT | Tornado Watch | SPC | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 7 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adams County4
- Brown County4
- Carroll County4
- Cass County4
- Hancock County4
- Henderson County4
- Henry County4
- Jo Daviess County4
- McDonough County4
- Mason County4
- Menard County4
- Mercer County4
- Morgan County4
- Pike County4
- Rock Island County4
- Scott County4
- Stephenson County4
- Warren County4
- Whiteside County4
- Boone County3
- Cook County3
- DeKalb County3
- DuPage County3
- Fulton County3
- Kane County3
- Knox County3
- Lake County3
- Lee County3
- McHenry County3
- Marshall County3
- Ogle County3
- Peoria County3
- Schuyler County3
- Stark County3
- Tazewell County3
- Winnebago County3
- Woodford County3
- Calhoun County3
- Jersey County3
- Madison County3
62 more counties
- Monroe County3
- Saint Clair County3
- Champaign County3
- Christian County3
- Clark County3
- Coles County3
- Cumberland County3
- Douglas County3
- Edgar County3
- Macon County3
- Moultrie County3
- Piatt County3
- Sangamon County3
- Shelby County3
- Vermilion County3
- Edwards County3
- Franklin County3
- Hamilton County3
- Jackson County3
- Jefferson County3
- Perry County3
- Wayne County3
- White County3
- Bureau County2
- Grundy County2
- Kendall County2
- LaSalle County2
- Putnam County2
- Will County2
- Ford County2
- Iroquois County2
- Livingston County2
- McLean County2
- Bond County2
- Clinton County2
- DeWitt County2
- Fayette County2
- Greene County2
- Logan County2
- Macoupin County2
- Marion County2
- Montgomery County2
- Washington County2
- Clay County2
- Crawford County2
- Effingham County2
- Jasper County2
- Lawrence County2
- Richland County2
- Alexander County2
- Gallatin County2
- Hardin County2
- Johnson County2
- Massac County2
- Pope County2
- Pulaski County2
- Saline County2
- Union County2
- Wabash County2
- Williamson County2
- Kankakee County1
- Randolph 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.