Illinois Severe Flood Watch | Effective 06/21/2026 18:35

Headline: 
Flood Watch issued June 21 at 8:35PM CDT until June 22 at 1:00AM CDT by NWS St Louis MO
Event: 
Flood Watch
Urgency: 
Future
Effective: 
June 21, 2026 - 6:35pm
Expires: 
June 21, 2026 - 11:00pm
Description: 
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...A portion of south central Illinois, including the following areas, Bond IL, Fayette IL and Montgomery IL. * WHEN...Until 1 AM CDT Monday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Thunderstorms producing heavy rainfall moving over the same locations could produce flash flooding. Rainfall amounts of 1-3 inches are expected with locally higher amounts up to 6 inches possible.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Montgomery; Bond; Fayette
Forcast Office: 
NWS St Louis MO