Flood Warning for Fox River at Dayton in La Salle County
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NWS Chicago has issued a Flood Warning for the Fox River at Dayton in La Salle County, with moderate flooding forecast from Sunday afternoon through Tuesday evening.
This weather record, quickly
- Record type
- Flood Warning
- Affected area
- La Salle County, Illinois
- Issued
- September 20, 2026
- Issuing authority
- NWS Chicago IL
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: publication date is recent, but current status is not stored on this page. Check the issuing agency's live warning service before acting because warnings can be updated, narrowed, or cancelled.
Alert Details
A Flood Warning has been issued by the National Weather Service Chicago IL. The alert is effective from September 19, 2026 at 10:10 PM CDT and remains in effect until September 22, 2026 at 9:00 PM CDT.
Affected Areas
La Salle County, Illinois. The warning covers the Fox River from Millington downstream to the confluence with the Illinois River, including the Dayton gauge.
What You Should Do
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property.
Expected Conditions
Moderate flooding is forecast. The river is expected to rise above flood stage early Sunday afternoon to a crest of 14.9 feet Monday morning. At 14.5 feet, low-lying agricultural land is inundated near Norway. Flood stage is 12.0 feet. At 8:45 PM CDT Saturday the stage was 7.6 feet.
Timeline
The alert is in effect from Sunday afternoon through Tuesday evening. The river is forecast to fall below flood stage Tuesday afternoon.
Original source: NOAA Official Notice ↗
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