Water Temperature of the Illinois River in Seneca, IL
Current Water Temperature
Measurement Time: Sunday, January 21, 2024, 8:45 AM CST
Temperature Locations
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Station Name: Seneca
Data Source: USGS
Elevation Above Sea Level: 499 feet / 152 meters
Nearest Address:
Harbor Lane
Seneca, IL 61360
La Salle County
GPS Coordinates: 41.2997, -88.6142
Nearby Water Temperatures
Illinois River, Seneca, IL (0.0 mi)Illinois River, Marseilles, IL (5.5 mi)
Hanson Gravel Pit, Morris, IL (8.0 mi)
Kankakee River, Morris, IL (19.3 mi)
Illinois River, Utica, IL (19.4 mi)
Des Plaines River, Channahon, IL (22.2 mi)
Kankakee River, Wilmington, IL (22.4 mi)
Kankakee River, Custer Park, IL (25.5 mi)
Des Plaines River, Rockdale, IL (29.7 mi)
Des Plaines River, Joliet, IL (32.0 mi)
Des Plaines River, Lockport, IL (33.4 mi)
Chicago Sanitary and Ship Canal, Romeoville, IL (37.2 mi)
Illinois River, Henry, IL (40.8 mi)
Cal-Sag Channel, Blue Island, IL (54.6 mi)
Plum Creek, Dyer, IN (59.0 mi)
Weather for Seneca, Illinois
Current Weather

Humidity: 99%
Feels Like: 81.3°F
Wind: ENE 2.7 mph
Wind Gusts: 5.2 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0
Five Day Weather Forecast

Fri
H: 80°F
L: 72°F

Sat
H: 89°F
L: 73°F

Sun
H: 89°F
L: 76°F

Mon
H: 98°F
L: 79°F

Tue
H: 91°F
L: 76°F
Air Quality
Nitrogen Dioxide: 18.13 μg/m3
Sulphur Dioxide: 2.78 μg/m3
Ozone: 67 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:18 PM
Daylight: 14 hrs 35 mins
Moon Transit: 1:55 PM
Moonset: 9:13 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
1:10 AM - 3:40 AM1:25 PM - 3:55 PM
Minor Periods
8:43 PM - 10:13 PM5:55 AM - 7:25 AM
Action Rating: 5 out of 5
Flood Watch issued July 25 at 5:30PM CDT until July 26 at 7:00PM CDT by NWS Chicago IL
Effective: Fri July 25, 2025, 5:30 PM
Expires: Sat July 26, 2025, 5:00 AM
* WHAT...Flash flooding caused by excessive rainfall due to repeated rounds of torrential rain-producing thunderstorms is possible. * WHERE...Cook, DuPage, Eastern Will, Grundy, Kane, Kendall, Will counties in Illinois and Lake county in Indiana. * WHEN...Through Saturday evening. * IMPACTS...Creeks and streams may rise out of their banks. In addition, roads and streets may flood, especially in areas where storm drains are clogged with debris. Finally, flooding of basements may occur if thunderstorms train over urban areas. * ADDITIONAL DETAILS... - Over the next 36 hours, several rounds of torrential rain- producing thunderstorms are possible in the watch area including over areas that experienced several inches of rain in the past few days. The tropical-like airmass will support rain rates in excess of 2 inches per hour in the strongest thunderstorms, leading to a threat for flash flooding. - http://www.weather.gov/safety/flood
Monitor the latest forecasts and be prepared to take quick action should flooding develop.
Flood Watch issued July 25 at 5:30PM CDT until July 26 at 7:00PM CDT by NWS Chicago IL
Effective: Fri July 25, 2025, 5:30 PM
Expires: Sat July 26, 2025, 5:00 AM
* WHAT...Flash flooding caused by excessive rainfall due to repeated rounds of torrential rain-producing thunderstorms is possible. * WHERE...Cook, DuPage, Eastern Will, Grundy, Kane, Kendall, Will counties in Illinois and Lake county in Indiana. * WHEN...Through Saturday evening. * IMPACTS...Creeks and streams may rise out of their banks. In addition, roads and streets may flood, especially in areas where storm drains are clogged with debris. Finally, flooding of basements may occur if thunderstorms train over urban areas. * ADDITIONAL DETAILS... - Over the next 36 hours, several rounds of torrential rain- producing thunderstorms are possible in the watch area including over areas that experienced several inches of rain in the past few days. The tropical-like airmass will support rain rates in excess of 2 inches per hour in the strongest thunderstorms, leading to a threat for flash flooding. - http://www.weather.gov/safety/flood
Monitor the latest forecasts and be prepared to take quick action should flooding develop.
Flood Watch issued July 25 at 5:30PM CDT until July 26 at 7:00PM CDT by NWS Chicago IL
Effective: Fri July 25, 2025, 5:30 PM
Expires: Sat July 26, 2025, 5:00 AM
* WHAT...Flash flooding caused by excessive rainfall due to repeated rounds of torrential rain-producing thunderstorms is possible. * WHERE...Cook, DuPage, Eastern Will, Grundy, Kane, Kendall, Will counties in Illinois and Lake county in Indiana. * WHEN...Through Saturday evening. * IMPACTS...Creeks and streams may rise out of their banks. In addition, roads and streets may flood, especially in areas where storm drains are clogged with debris. Finally, flooding of basements may occur if thunderstorms train over urban areas. * ADDITIONAL DETAILS... - Over the next 36 hours, several rounds of torrential rain- producing thunderstorms are possible in the watch area including over areas that experienced several inches of rain in the past few days. The tropical-like airmass will support rain rates in excess of 2 inches per hour in the strongest thunderstorms, leading to a threat for flash flooding. - http://www.weather.gov/safety/flood
Monitor the latest forecasts and be prepared to take quick action should flooding develop.
Flood Watch issued July 25 at 5:30PM CDT until July 26 at 7:00PM CDT by NWS Chicago IL
Effective: Fri July 25, 2025, 5:30 PM
Expires: Sat July 26, 2025, 5:00 AM
* WHAT...Flash flooding caused by excessive rainfall due to repeated rounds of torrential rain-producing thunderstorms is possible. * WHERE...Boone, De Kalb, La Salle, Lee, Ogle, Winnebago, Lake IL and McHenry counties in Illinois. * WHEN...Through Saturday evening. * IMPACTS...Creeks and streams may rise out of their banks. In addition, roads and streets may flood, especially in areas where storm drains are clogged with debris. Finally, flooding of basements may occur if thunderstorms train over urban areas. * ADDITIONAL DETAILS... - Over the next 36 hours, several rounds of torrential rain- producing thunderstorms are possible in the watch area including over areas that experienced several inches of rain in the past few days. The tropical-like airmass will support rain rates in excess of 2 inches per hour in the strongest thunderstorms, leading to a threat for flash flooding. - http://www.weather.gov/safety/flood
Monitor the latest forecasts and be prepared to take quick action should flooding develop.
Flood Watch issued July 25 at 5:30PM CDT until July 26 at 7:00PM CDT by NWS Chicago IL
Effective: Fri July 25, 2025, 5:30 PM
Expires: Sat July 26, 2025, 5:00 AM
* WHAT...Flash flooding caused by excessive rainfall due to repeated rounds of torrential rain-producing thunderstorms is possible. * WHERE...Cook, DuPage, Eastern Will, Grundy, Kane, Kendall, Will counties in Illinois and Lake county in Indiana. * WHEN...Through Saturday evening. * IMPACTS...Creeks and streams may rise out of their banks. In addition, roads and streets may flood, especially in areas where storm drains are clogged with debris. Finally, flooding of basements may occur if thunderstorms train over urban areas. * ADDITIONAL DETAILS... - Over the next 36 hours, several rounds of torrential rain- producing thunderstorms are possible in the watch area including over areas that experienced several inches of rain in the past few days. The tropical-like airmass will support rain rates in excess of 2 inches per hour in the strongest thunderstorms, leading to a threat for flash flooding. - http://www.weather.gov/safety/flood
Monitor the latest forecasts and be prepared to take quick action should flooding develop.
Weather Forecast
Average Temperature: 75.5°F
Average Humidity: 95%
Wind: 5.1 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 17.89 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 76.72 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:18 PM
Daylight: 14 hrs 35 mins
Moon Transit: 1:55 PM
Moonset: 9:13 PM
Moon Phase: New
Moon Illumination: 3.1%
Best Times for Fishing or Hunting
Major Periods
1:10 AM - 3:40 AM1:25 PM - 3:55 PM
Minor Periods
8:43 PM - 10:13 PM5:55 AM - 7:25 AM
Action Rating: 5 out of 5
Weather Forecast
Average Temperature: 77.6°F
Average Humidity: 93%
Wind: 11 mph
UV Index: 1.3
Air Quality
Nitrogen Dioxide: 15.16 μg/m3
Sulphur Dioxide: 2.85 μg/m3
Ozone: 87 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:17 PM
Daylight: 14 hrs 33 mins
Moon Transit: 2:43 PM
Moonset: 9:38 PM
Moon Phase: New
Moon Illumination: 0.7%
Best Times for Fishing or Hunting
Major Periods
2:01 AM - 4:31 AM2:13 PM - 4:43 PM
Minor Periods
9:08 PM - 10:38 PM7:07 AM - 8:37 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 81.9°F
Average Humidity: 90%
Wind: 6.3 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 12.14 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 85.32 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:16 PM
Daylight: 14 hrs 31 mins
Moon Transit: 3:28 PM
Moonset: 9:59 PM
Moon Phase: New
Moon Illumination: 3.8%
Best Times for Fishing or Hunting
Major Periods
2:47 AM - 5:17 AM2:58 PM - 5:28 PM
Minor Periods
9:29 PM - 10:59 PM8:16 AM - 9:46 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 86°F
Average Humidity: 83%
Wind: 11.4 mph
UV Index: 2.4
Air Quality
Nitrogen Dioxide: 11.94 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 91.16 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 8:15 PM
Daylight: 14 hrs 29 mins
Moon Transit: 4:10 PM
Moonset: 10:19 PM
Moon Phase: Waxing Crescent
Moon Illumination: 9.3%
Best Times for Fishing or Hunting
Major Periods
3:30 AM - 6:00 AM3:40 PM - 6:10 PM
Minor Periods
9:49 PM - 11:19 PM9:20 AM - 10:50 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 82.4°F
Average Humidity: 85%
Wind: 7.2 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 22.24 μg/m3
Sulphur Dioxide: 3.07 μg/m3
Ozone: 56.62 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 8:14 PM
Daylight: 14 hrs 27 mins
Moon Transit: 4:50 PM
Moonset: 10:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 16.9%
Best Times for Fishing or Hunting
Major Periods
4:11 AM - 6:41 AM4:20 PM - 6:50 PM
Minor Periods
10:08 PM - 11:38 PM10:24 AM - 11:54 AM
Action Rating: 2 out of 5