Station Name: ILLINOIS RIVER AT SENECA, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 499 feet

Nearest Address:
511 N 2553rd Rd
Seneca, IL 61341
La Salle County

GPS Coordinates: 41.2997222, -88.6141667

Nearby Water Temperatures

Flood Warning issued June 19 at 9:15PM CDT until June 23 at 4:00PM CDT by NWS Chicago IL

Effective: Fri June 19, 2026, 9:15 PM
Expires: Sat June 20, 2026, 3:15 PM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River at La Salle affecting La Salle, Bureau and Putnam Counties. For the Illinois River (Upper)...including La Salle...Minor flooding is forecast. * WHAT...Minor flooding is occurring and 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...Until Tuesday afternoon. * IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State Park is inundated east of La Salle. High water levels begin to impact shipping interests along the river. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 21.9 feet. - Forecast...The river is cresting near 22 feet tonight, then will begin a slow fall. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood

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.

Flood Warning issued June 19 at 9:17PM CDT until June 22 at 7:00AM CDT by NWS Lincoln IL

Effective: Fri June 19, 2026, 9:17 PM
Expires: Sat June 20, 2026, 1:30 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Henry affecting Marshall and Putnam Counties. Illinois River at Peoria affecting Peoria, Tazewell and Woodford Counties. Illinois River at Beardstown affecting Morgan, Brown, Schuyler and Cass Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...Until Monday morning. * IMPACTS...At 23.0 feet, Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 23.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 23.0 feet. - Forecast...The river is expected to rise to a crest of 23.1 feet just after midnight tonight. It will then fall below flood stage early Monday morning. - Flood stage is 23.0 feet. - http://www.weather.gov/safety/flood

Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.

Hydrologic Outlook issued June 20 at 3:30AM CDT by NWS Chicago IL

Effective: Sat June 20, 2026, 3:30 AM
Expires: Sat June 20, 2026, 4:00 PM

ESFLOT A steady soaking rain is expected Sunday afternoon and evening. The highest rainfall amounts are forecast south of I-80 where totals in excess of 2 inches are possible. Many rivers and streams across the region remain elevated from recent heavy rainfall. Thus, rainfall amounts of this magnitude will result in renewed rises on area streams and rivers, with some potentially topping flood stage. Uncertainty remains with where the heaviest rainfall amounts will occur. Anyone in or near flood prone areas should thus closely monitor later forecasts. This outlook will be updated by this evening.