Flood Warning — Putnam County, Illinois
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Current Status
🌊 Active: Flood Warning
Flood Warning issued August 14 at 10:15PM CDT by NWS Chicago IL
...The National Weather Service in Chicago has issued a Flood Warning for the following rivers in Illinois... Illinois River at La Salle affecting Putnam, La Salle and Bureau Counties. For the Illinois River (Upper)...including La Salle...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...From Saturday morning until further notice. * IMPACTS...At 28.0 feet, Dee Bennet Road is threatened between Ottawa and Utica. * ADDITIONAL DETAILS... - At 9:45 PM CDT Friday the stage was 18.4 feet. - Forecast...The river is expected to rise above flood stage tomorrow morning and is expected to remain in flood through next week. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Effective August 14, 2026 at 11:15 PM ET · Expires August 15, 2026 at 5:15 PM ET
Event Details
Event Type
Flood Warning
Severity
severe
Issued By
NWS Chicago IL
Expires
August 15, 2026 at 5:15 PM ET
Last Checked
1 minute ago
What To Do
📋 Official NWS Guidance
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. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Saturday afternoon.
Also In Effect For
This same Flood Warning also covers:
Other Active Alerts in Illinois
Hydrologic Outlook
Flood Warning
Hydrologic Outlook
Severe Thunderstorm Warning
Hydrologic Outlook
Hydrologic Outlook
Get Flood Warning Alerts for Putnam County
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Frequently Asked Questions
What does a Flood Warning mean for Putnam County, Illinois?
Flooding is occurring or imminent along rivers, streams, or low-lying areas.
Is this Flood Warning currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire August 15, 2026 at 5:15 PM ET.
How do I get notified about Flood Warning alerts for Putnam County?
Download StormCast free on Google Play and set Putnam County, Illinois as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flood Warning is also in effect for La Salle County, Bureau County.