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

View Nearby Locations     View All Illinois Locations     View Locations Near Me

Sponsored Content

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

25.7°F
Overcast
Conditions: Overcast
Humidity: 90%
Feels Like: 16.1°F
Wind: WNW 9.6 mph
Wind Gusts: 14.9 mph
Pressure: 30.39 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Light freezing rain
Sun
H: 33°F
L: 4°F
Moderate or heavy snow showers
Mon
H: 28°F
L: 12°F
Moderate or heavy snow showers
Tue
H: 28°F
L: 6°F
Moderate or heavy snow showers
Wed
H: 30°F
L: 9°F
Light freezing rain
Thu
H: 24°F
L: -5°F

Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 9.75 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 72 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

Winter Weather Advisory issued November 30 at 1:51AM CST until November 30 at 12:00PM CST by NWS Chicago IL

Effective: Sun November 30, 2025, 1:51 AM
Expires: Sun November 30, 2025, 12:00 PM

* WHAT...Snow and patchy blowing snow. Additional snow accumulations up to one inch. Winds gusting as high as 35 mph. * WHERE...Portions of north central and northeast Illinois and northwest Indiana. * WHEN...Until noon CST today. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility.

Slow down and use caution while traveling. The latest road conditions for Illinois can be obtained at www.gettingaroundillinois.com. The latest road conditions for Indiana can be obtained at https://511in.org.
Sunday, November 30, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 28.4°F
Average Humidity: 85%
Chance of Rain: 86%
Wind: 21 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.01 μg/m3
PM10: 3.03 μg/m3
Carbon Monoxide: 170.45 μg/m3
Nitrogen Dioxide: 6.32 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 68.08 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

Monday, December 1, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 21.2°F
Average Humidity: 90%
Chance of Rain: 66%
Wind: 4.3 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 8.15 μg/m3
PM10: 8.3 μg/m3
Carbon Monoxide: 214.33 μg/m3
Nitrogen Dioxide: 14.22 μg/m3
Sulphur Dioxide: 1.6 μg/m3
Ozone: 61.96 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 11:43 AM
Sunset: 4:26 PM
Daylight: 9 hrs 25 mins
Moonrise: 1:55 PM
Moon Transit: 8:55 PM
Moonset: 2:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

8:10 AM - 10:40 AM
8:25 PM - 10:55 PM

Minor Periods

1:25 PM - 2:55 PM
2:23 AM - 3:53 AM

Action Rating: 2 out of 5

Tuesday, December 2, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 22.1°F
Average Humidity: 91%
Chance of Rain: 67%
Wind: 7.6 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 8.22 μg/m3
PM10: 8.41 μg/m3
Carbon Monoxide: 199.65 μg/m3
Nitrogen Dioxide: 12.34 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 61.52 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 11:44 AM
Sunset: 4:26 PM
Daylight: 9 hrs 24 mins
Moonrise: 2:25 PM
Moon Transit: 9:51 PM
Moonset: 4:11 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

9:04 AM - 11:34 AM
9:21 PM - 11:51 PM

Minor Periods

1:55 PM - 3:25 PM
3:41 AM - 5:11 AM

Action Rating: 2 out of 5

Wednesday, December 3, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 22.1°F
Average Humidity: 95%
Chance of Rain: 77%
Wind: 11.4 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.04 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 183.2 μg/m3
Nitrogen Dioxide: 8.05 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 69.6 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 11:44 AM
Sunset: 4:26 PM
Daylight: 9 hrs 23 mins
Moonrise: 3:03 PM
Moon Transit: 10:53 PM
Moonset: 5:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.1%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:33 PM - 4:03 PM
5:04 AM - 6:34 AM

Action Rating: 4 out of 5

Thursday, December 4, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 17.7°F
Average Humidity: 95%
Chance of Rain: 62%
Wind: 10.5 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 5.58 μg/m3
PM10: 5.77 μg/m3
Carbon Monoxide: 190.24 μg/m3
Nitrogen Dioxide: 6.4 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 68.31 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 11:44 AM
Sunset: 4:26 PM
Daylight: 9 hrs 21 mins
Moonrise: 3:52 PM
Moon Transit: 12:00 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 99.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:08 AM - 1:38 PM

Minor Periods

3:22 PM - 4:52 PM
6:27 AM - 7:57 AM

Action Rating: 4 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.

Webcams Near Seneca, IL

Sponsored Content