Water Temperature of the Illinois River in Seneca, IL

Current Water Temperature

48.3°F

Measurement Time: Thursday, November 20, 2025, 8:45 AM CST

Temperature Locations

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Illinois River

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

37°F
Overcast
Conditions: Overcast
Humidity: 74%
Feels Like: 26.5°F
Wind: WSW 20.4 mph
Wind Gusts: 29.9 mph
Pressure: 29.78 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Wed
H: 35°F
L: 28°F
Partly Cloudy
Thu
H: 33°F
L: 25°F
Sunny
Fri
H: 37°F
L: 20°F
Heavy snow
Sat
H: 32°F
L: 28°F
Light snow
Sun
H: 34°F
L: 11°F

Air Quality

PM2.5: 1.35 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 11:41 AM
Sunset: 4:28 PM
Daylight: 9 hrs 32 mins
Moonrise: 11:57 AM
Moon Transit: 4:58 PM
Moonset: 10:09 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
4:28 PM - 6:58 PM

Minor Periods

9:39 PM - 11:09 PM
11:27 AM - 12:57 AM

Action Rating: 4 out of 5

Wind Advisory issued November 25 at 3:01PM CST until November 26 at 9:00PM CST by NWS Chicago IL

Effective: Tue November 25, 2025, 3:01 PM
Expires: Wed November 26, 2025, 1:15 AM

* WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From 3 AM CST /4 AM EST/ to 9 PM CST /10 PM EST/ Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles on north to south roads. * ADDITIONAL DETAILS...Sporadic localized gusts up to 55 to 60 mph are possible during the day on Wednesday.

Secure lightweight outdoor objects, including holiday decorations and furniture. Use plenty of extra caution when driving a high profile vehicle.


Wind Advisory issued November 26 at 12:18AM CST until November 26 at 9:00PM CST by NWS Chicago IL

Effective: Wed November 26, 2025, 12:18 AM
Expires: Wed November 26, 2025, 10:30 AM

* WHAT...West winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...Until 9 PM CST /10 PM EST/ this evening. * IMPACTS...Gusty winds will blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result. Winds this strong can make driving difficult, especially for high profile vehicles on north to south roads. * ADDITIONAL DETAILS...Sporadic localized gusts up to 55 to 60 mph are possible during the day on Wednesday.

Secure lightweight outdoor objects, including holiday decorations and furniture. Use plenty of extra caution when driving a high profile vehicle.


Wind Advisory issued November 25 at 2:01PM CST until November 26 at 6:00PM CST by NWS Quad Cities IA IL

Effective: Tue November 25, 2025, 2:01 PM
Expires: Tue November 25, 2025, 10:15 PM

* WHAT...West winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Bureau, Putnam, Carroll, Henry IL, Jo Daviess, Stephenson, and Whiteside Counties. * WHEN...From 3 AM to 6 PM CST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.


Wind Advisory issued November 25 at 11:30PM CST until November 26 at 6:00PM CST by NWS Quad Cities IA IL

Effective: Tue November 25, 2025, 11:30 PM
Expires: Wed November 26, 2025, 8:00 AM

* WHAT...West to northwest winds 25 to 35 mph with gusts between 45 to 55 mph expected. * WHERE...Bureau, Putnam, Carroll, Henry IL, Jo Daviess, Stephenson, and Whiteside Counties. * WHEN...Until 6 PM CST Wednesday. * IMPACTS...Gusty winds will blow around unsecured objects, including holiday decorations. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Wednesday, November 26, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 33.9°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 26.8 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 2.92 μg/m3
Carbon Monoxide: 175.61 μg/m3
Nitrogen Dioxide: 4.78 μg/m3
Sulphur Dioxide: 1.49 μg/m3
Ozone: 55.88 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 11:41 AM
Sunset: 4:28 PM
Daylight: 9 hrs 32 mins
Moonrise: 11:57 AM
Moon Transit: 4:58 PM
Moonset: 10:09 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

4:16 AM - 6:46 AM
4:28 PM - 6:58 PM

Minor Periods

9:39 PM - 11:09 PM
11:27 AM - 12:57 AM

Action Rating: 4 out of 5

Thursday, November 27, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 28°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 21.3 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 2.46 μg/m3
PM10: 2.48 μg/m3
Carbon Monoxide: 151.09 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 69.16 μg/m3

Astronomical

Sunrise: 6:57 AM
Sun Transit: 11:42 AM
Sunset: 4:27 PM
Daylight: 9 hrs 30 mins
Moonrise: 12:22 AM
Moon Transit: 5:44 PM
Moonset: 11:17 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:14 PM - 7:44 PM

Minor Periods

12:00 AM - 12:00 AM
11:52 AM - 1:22 PM

Action Rating: 2 out of 5

Friday, November 28, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 26.8°F
Average Humidity: 60%
Chance of Rain: 0%
Wind: 14.1 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.55 μg/m3
PM10: 4.6 μg/m3
Carbon Monoxide: 157.65 μg/m3
Nitrogen Dioxide: 6.05 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 59.88 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 11:42 AM
Sunset: 4:27 PM
Daylight: 9 hrs 29 mins
Moonrise: 12:45 AM
Moon Transit: 6:29 PM
Moonset: 12:17 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
5:59 PM - 8:29 PM

Minor Periods

12:15 AM - 1:45 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, November 29, 2025

Weather Forecast

Conditions: Heavy snow
Average Temperature: 30°F
Average Humidity: 78%
Chance of Rain: 74%
Wind: 16.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.51 μg/m3
PM10: 7.67 μg/m3
Carbon Monoxide: 193.77 μg/m3
Nitrogen Dioxide: 8.33 μg/m3
Sulphur Dioxide: 6.23 μg/m3
Ozone: 50.15 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 11:42 AM
Sunset: 4:27 PM
Daylight: 9 hrs 28 mins
Moonrise: 1:06 PM
Moon Transit: 8:12 PM
Moonset: 12:27 AM
Moon Phase: First Quarter
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

7:42 PM - 10:12 PM
7:42 PM - 10:12 PM

Minor Periods

12:36 AM - 2:06 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, November 30, 2025

Weather Forecast

Conditions: Light snow
Average Temperature: 29.2°F
Average Humidity: 95%
Chance of Rain: 80%
Wind: 18.3 mph
UV Index: 1

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 11:43 AM
Sunset: 4:26 PM
Daylight: 9 hrs 26 mins
Moonrise: 1:29 PM
Moon Transit: 8:03 PM
Moonset: 1:38 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
7:33 PM - 10:03 PM

Minor Periods

12:59 AM - 2:29 PM
1:08 AM - 2:38 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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