Alert archive / Illinois / Flood Watches / 2026
Flood Watches in Illinois, June 2026
21 flood watches in June 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 flood watches reaches back to 2005.
Flood Watches by county
Each county as a circle sized by its count in June 2026. Tap one for its archive.
- Flood Watches
- 21
- Busiest day
- June 10, 20264 flood 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 |
|---|---|---|---|---|
| Jun 7, 11:46 AM CDT | Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 31 hr |
| Jun 7, 1:26 PM CDT | Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 40 hr |
| Jun 8, 1:23 AM CDT | Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 44 hr |
| Jun 8, 1:37 AM CDT | Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 23 hr |
| Jun 10, 10:44 AM CDT | Flood Watch | LSX | Adams, Brown, Pike | 16 hr |
| Jun 10, 10:58 AM CDT | Flood Watch | DVN | Bureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more | 32 hr |
| Jun 10, 11:05 AM CDT | Flood Watch | ILX | Cass, DeWitt, Fulton, Knox, Logan, McLean and 11 more | 17 hr |
| Jun 10, 6:54 PM CDT | Flood Watch | LOT | Cook, DeKalb, DuPage, Ford, Grundy, Iroquois and 7 more | 7 hr |
| Jun 11, 10:05 AM CDT | Flood Watch | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 11 hr |
| Jun 11, 11:39 AM CDT | Flood Watch | ILX | Cass, DeWitt, Fulton, Knox, Logan, McLean and 8 more | 9 hr |
| Jun 11, 11:50 AM CDT | Flood Watch | LSX | Adams, Brown | 7 hr |
| Jun 16, 1:10 PM CDT | Flood Watch | ILX | Fulton, Knox, McLean, Marshall, Peoria, Stark and 2 more | 30 hr |
| Jun 16, 1:36 PM CDT | Flood Watch | DVN | Bureau, Hancock, Henderson, Henry, McDonough, Mercer and 4 more | 29 hr |
| Jun 17, 2:20 AM CDT | Flood Watch | LOT | Boone, Cook, DeKalb, DuPage, Ford, Grundy and 12 more | 15 hr |
| Jun 20, 1:28 AM CDT | Flood Watch | LSX | Adams, Bond, Brown, Calhoun, Clinton, Fayette and 11 more | 45 hr |
| Jun 20, 1:45 AM CDT | Flood Watch | ILX | Cass, Champaign, Christian, Clark, Clay, Coles and 29 more | 45 hr |
| Jun 20, 2:13 AM CDT | Flood Watch | DVN | Hancock, Henderson, McDonough, Warren | 35 hr |
| Jun 20, 9:56 PM CDT | Flood Watch | PAH | Edwards, Franklin, Hamilton, Jefferson, Perry, Wabash and 2 more | 33 hr |
| Jun 24, 11:53 AM CDT | Flood Watch | LSX | Bond, Calhoun, Clinton, Fayette, Greene, Jersey and 9 more | 62 hr |
| Jun 24, 11:58 AM CDT | Flood Watch | ILX | Christian, Clark, Clay, Coles, Crawford, Cumberland and 12 more | 63 hr |
| Jun 25, 1:36 AM CDT | Flood Watch | PAH | Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more | 3 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fulton County5
- Knox County5
- McLean County5
- Marshall County5
- Peoria County5
- Stark County5
- Tazewell County5
- Woodford County5
- Hancock County4
- Henderson County4
- McDonough County4
- Warren County4
- Adams County4
- Brown County4
- Pike County4
- Cass County4
- DeWitt County4
- Logan County4
- Mason County4
- Menard County4
- Morgan County4
- Sangamon County4
- Schuyler County4
- Scott County4
- Bureau County3
- Henry County3
- Mercer County3
- Putnam County3
- Rock Island County3
- Whiteside County3
- Bond County3
- Calhoun County3
- Clinton County3
- Fayette County3
- Greene County3
- Jersey County3
- Macoupin County3
- Madison County3
- Marion County3
- Monroe County3
62 more counties
- Montgomery County3
- Randolph County3
- Saint Clair County3
- Washington County3
- Edwards County3
- Franklin County3
- Hamilton County3
- Jefferson County3
- Perry County3
- Wabash County3
- Wayne County3
- White County3
- Christian County3
- Clark County3
- Clay County3
- Coles County3
- Crawford County3
- Cumberland County3
- Douglas County3
- Edgar County3
- Effingham County3
- Jasper County3
- Lawrence County3
- Macon County3
- Moultrie County3
- Richland County3
- Shelby County3
- Cook County3
- DeKalb County3
- DuPage County3
- Ford County3
- Grundy County3
- Iroquois County3
- Kane County3
- Kankakee County3
- Kendall County3
- LaSalle County3
- Lee County3
- Livingston County3
- Will County3
- Carroll County2
- Jo Daviess County2
- Stephenson County2
- Alexander County2
- Gallatin County2
- Hardin County2
- Jackson County2
- Johnson County2
- Massac County2
- Pope County2
- Pulaski County2
- Saline County2
- Union County2
- Williamson County2
- Champaign County2
- Piatt County2
- Vermilion County2
- Boone County2
- Lake County2
- McHenry County2
- Ogle County2
- Winnebago County2
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.