Weather for Seneca, Illinois
Current Weather
Five Day Weather Forecast
Fri
H: 71°F
L: 59°F
Sat
H: 75°F
L: 60°F
Sun
H: 86°F
L: 64°F
Mon
H: 89°F
L: 71°F
Tue
H: 90°F
L: 72°F
Air Quality
Nitrogen Dioxide: 30.7 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 21 μg/m3
Astronomical
Sun Transit: 12:57 AM
Sunset: 8:32 PM
Daylight: 15 hrs 9 mins
Moon Transit: 10:39 PM
Moonset: 2:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%
Best Times for Fishing or Hunting
Major Periods
9:56 AM - 12:26 AM12:00 AM - 12:00 AM
Minor Periods
5:41 PM - 7:11 PM1:58 AM - 3:28 AM
Action Rating: 2 out of 5
Flood Warning issued June 25 at 9:58AM CDT until June 29 at 7:00AM CDT by NWS Chicago IL
Effective: Thu June 25, 2026, 9:58 AM
Expires: Fri June 26, 2026, 4:00 AM
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at La Salle affecting Bureau, La Salle and Putnam Counties. ...The Flood Warning is cancelled for the following rivers in Illinois... Thorn Creek at Thornton affecting Cook County. 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 Monday morning. * 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 9:45 AM CDT Thursday the stage was 22.0 feet. - Forecast...The river is expected to fall below flood stage early Monday morning and continue falling to 18.3 feet Thursday, July 02. - 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 this morning.
Flood Warning issued June 25 at 8:54PM CDT until June 29 at 7:00AM CDT by NWS Chicago IL
Effective: Thu June 25, 2026, 8:54 PM
Expires: Fri June 26, 2026, 11:00 AM
...The Flood Warning continues for the following rivers in Illinois... Illinois River at La Salle affecting La Salle, Bureau and Putnam Counties. * 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 Monday morning. * 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 7:45 PM CDT Thursday the stage was 21.9 feet. - Forecast...The river is expected to remain near 22.0 feet through early Friday morning then gradually fall through the weekend. It will then fall below flood stage early Monday morning. - 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 Friday morning.
Flood Warning issued June 25 at 10:19AM CDT until June 29 at 1:00AM CDT by NWS Lincoln IL
Effective: Thu June 25, 2026, 10:19 AM
Expires: Fri June 26, 2026, 2:30 AM
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Marshall and Putnam Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River at Beardstown affecting Cass, Schuyler, Morgan and Brown Counties. Illinois River near Havana affecting Cass, Fulton and Mason Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River at Henry. * WHEN...Until early 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 9:45 AM CDT Thursday the stage was 24.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Thursday was 24.2 feet. - Forecast...The river is expected to fall below flood stage Sunday evening and continue falling to 21.3 feet Thursday, July 02. - 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.
Flood Warning issued June 25 at 8:47PM CDT until June 29 at 7:00AM CDT by NWS Lincoln IL
Effective: Thu June 25, 2026, 8:47 PM
Expires: Fri June 26, 2026, 1:00 PM
...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Henry affecting Putnam and Marshall Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Woodford, Peoria and Tazewell Counties. Illinois River at Beardstown affecting Morgan, Brown, Schuyler and Cass Counties. Illinois River near Havana affecting Mason, Cass and Fulton Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate 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 7:45 PM CDT Thursday the stage was 24.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Thursday was 24.2 feet. - Forecast...The river is expected to fall below flood stage early Monday morning and continue falling to 21.3 feet Thursday, July 02. - 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.
Weather Forecast
Air Quality
Nitrogen Dioxide: 12.65 μg/m3
Sulphur Dioxide: 3.04 μg/m3
Ozone: 49.13 μg/m3
Astronomical
Sun Transit: 12:57 AM
Sunset: 8:32 PM
Daylight: 15 hrs 9 mins
Moon Transit: 10:39 PM
Moonset: 2:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.2%
Best Times for Fishing or Hunting
Major Periods
9:56 AM - 12:26 AM12:00 AM - 12:00 AM
Minor Periods
5:41 PM - 7:11 PM1:58 AM - 3:28 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.74 μg/m3
Sulphur Dioxide: 2.4 μg/m3
Ozone: 72.67 μg/m3
Astronomical
Sun Transit: 12:57 AM
Sunset: 8:32 PM
Daylight: 15 hrs 9 mins
Moon Transit: 11:29 PM
Moonset: 3:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%
Best Times for Fishing or Hunting
Major Periods
10:45 AM - 1:15 PM12:00 AM - 12:00 AM
Minor Periods
6:40 PM - 8:10 PM2:34 AM - 4:04 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.16 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 63.46 μg/m3
Astronomical
Sun Transit: 12:57 AM
Sunset: 8:32 PM
Daylight: 15 hrs 9 mins
Moon Transit: 12:00 AM
Moonset: 3:47 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:36 AM - 2:06 PM
Minor Periods
7:34 PM - 9:04 PM3:17 AM - 4:47 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.4 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 74.13 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:32 PM
Daylight: 15 hrs 8 mins
Moon Transit: 12:20 AM
Moonset: 4:38 AM
Moon Phase: Full
Moon Illumination: 100.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:28 AM - 2:58 PM
Minor Periods
8:21 PM - 9:51 PM4:08 AM - 5:38 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.45 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 51.25 μg/m3
Astronomical
Sun Transit: 12:58 AM
Sunset: 8:32 PM
Daylight: 15 hrs 8 mins
Moon Transit: 1:12 AM
Moonset: 5:36 AM
Moon Phase: Full
Moon Illumination: 98.6%
Best Times for Fishing or Hunting
Major Periods
12:42 AM - 3:12 AM1:18 PM - 3:48 PM
Minor Periods
9:00 PM - 10:30 PM5:06 AM - 6:36 AM
Action Rating: 5 out of 5