Water Temperature of the Illinois River in Seneca, IL

Current Water Temperature

31.8°F

Measurement Time: Sunday, January 21, 2024, 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

57.6°F
Mist
Conditions: Mist
Humidity: 100%
Feels Like: 57.6°F
Wind: SSE 4 mph
Wind Gusts: 8.5 mph
Pressure: 30.04 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 4 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Thu
H: 92°F
L: 58°F
Cloudy
Fri
H: 87°F
L: 64°F
Patchy rain nearby
Sat
H: 84°F
L: 62°F
Heavy rain
Sun
H: 81°F
L: 64°F
Moderate rain
Mon
H: 84°F
L: 65°F

Air Quality

AQI: 2 - Moderate
PM2.5: 20.54 μg/m3
PM10: 21.09 μg/m3
Carbon Monoxide: 464.35 μg/m3
Nitrogen Dioxide: 15.73 μg/m3
Sulphur Dioxide: 9.44 μg/m3
Ozone: 100 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:48 AM
Sunset: 6:58 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:06 AM
Moon Transit: 10:31 AM
Moonset: 5:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:01 AM - 12:31 AM

Minor Periods

5:13 PM - 6:43 PM
2:36 AM - 4:06 AM

Action Rating: 3 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 73.1°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 8.7 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 26.94 μg/m3
PM10: 27.42 μg/m3
Carbon Monoxide: 482.04 μg/m3
Nitrogen Dioxide: 26.62 μg/m3
Sulphur Dioxide: 10.2 μg/m3
Ozone: 95.76 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:48 AM
Sunset: 6:58 PM
Daylight: 12 hrs 19 mins
Moonrise: 3:06 AM
Moon Transit: 10:31 AM
Moonset: 5:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:01 AM - 12:31 AM

Minor Periods

5:13 PM - 6:43 PM
2:36 AM - 4:06 AM

Action Rating: 3 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 70.8°F
Average Humidity: 87%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 0.9

Air Quality

AQI: 2 - Moderate
PM2.5: 28.31 μg/m3
PM10: 28.96 μg/m3
Carbon Monoxide: 419.65 μg/m3
Nitrogen Dioxide: 22.61 μg/m3
Sulphur Dioxide: 16.07 μg/m3
Ozone: 102.36 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:48 AM
Sunset: 6:56 PM
Daylight: 12 hrs 17 mins
Moonrise: 4:16 AM
Moon Transit: 11:17 AM
Moonset: 6:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:47 AM - 1:17 PM

Minor Periods

5:37 PM - 7:07 PM
3:46 AM - 5:16 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 71.6°F
Average Humidity: 77%
Chance of Rain: 83%
Wind: 8.5 mph
UV Index: 1.3

Air Quality

AQI: 2 - Moderate
PM2.5: 28.44 μg/m3
PM10: 29.21 μg/m3
Carbon Monoxide: 391.09 μg/m3
Nitrogen Dioxide: 16.66 μg/m3
Sulphur Dioxide: 10.23 μg/m3
Ozone: 104.08 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:47 AM
Sunset: 6:55 PM
Daylight: 12 hrs 14 mins
Moonrise: 5:22 AM
Moon Transit: 12:00 AM
Moonset: 6:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:30 AM - 2:00 PM

Minor Periods

5:57 PM - 7:27 PM
4:52 AM - 6:22 AM

Action Rating: 3 out of 5

Sunday, September 21, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 69°F
Average Humidity: 79%
Chance of Rain: 89%
Wind: 13.6 mph
UV Index: 0.9

Air Quality

AQI: 2 - Moderate
PM2.5: 20.74 μg/m3
PM10: 21.37 μg/m3
Carbon Monoxide: 363.56 μg/m3
Nitrogen Dioxide: 25.34 μg/m3
Sulphur Dioxide: 4.08 μg/m3
Ozone: 77.76 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:47 AM
Sunset: 6:53 PM
Daylight: 12 hrs 11 mins
Moonrise: 6:27 AM
Moon Transit: 12:42 AM
Moonset: 6:46 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:03 AM - 2:33 AM
12:12 AM - 2:42 PM

Minor Periods

6:16 PM - 7:46 PM
5:57 AM - 7:27 AM

Action Rating: 3 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 71.5°F
Average Humidity: 80%
Chance of Rain: 80%
Wind: 19.7 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 18.27 μg/m3
PM10: 18.71 μg/m3
Carbon Monoxide: 424.22 μg/m3
Nitrogen Dioxide: 21.92 μg/m3
Sulphur Dioxide: 2.26 μg/m3
Ozone: 78.54 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:47 AM
Sunset: 6:51 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:30 AM
Moon Transit: 1:22 PM
Moonset: 7:05 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
12:52 AM - 3:22 PM

Minor Periods

6:35 PM - 8:05 PM
7:00 AM - 8:30 AM

Action Rating: 5 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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