Illinois, Missouri Severe Flood Watch | Effective 06/21/2026 15:52
* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.
* WHERE...Portions of Illinois, including the following areas, Bond
IL, Fayette IL, Greene IL, Jersey IL, Macoupin IL, Madison IL and
Montgomery IL and east central Missouri, including the following
areas, Franklin MO, Saint Charles MO, Saint Louis City MO and Saint
Louis MO.
* 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.