Water Temperature of the Illinois River in Seneca, IL

Current Water Temperature

32.0°F

Measurement Time: Friday, January 23, 2026, 8:45 AM CST

Temperature Locations

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Illinois River

Station Name: Seneca
Data Source: USGS

Elevation Above Sea Level: 499 feet

Nearest Address:
Harbor Lane
Seneca, IL 61360
La Salle County

GPS Coordinates: 41.2997, -88.6142

Nearby Water Temperatures

Illinois River, Seneca, IL (0 mi)
Illinois River, Marseilles, IL (5.5 mi)
Hanson Gravel Pit, Morris, IL (8 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 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 mi)

Weather for Seneca, Illinois

Current Weather

70°F
Showers And Thunderstorms
Showers And Thunderstorms
94%
NNE 5 mph
68°F

Weather Forecast

Showers And Thunderstorms
Overnight
68°F - Showers And Thunderstorms
Chance Showers And Thunderstorms
Wednesday
77°F - Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
Wednesday Night
68°F - Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
Showers And Thunderstorms
Thursday
80°F - Showers And Thunderstorms
Mostly Cloudy
Thursday Night
65°F - Mostly Cloudy
Slight Chance Rain Showers
Friday
80°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Chance Showers And Thunderstorms
Friday Night
68°F - Slight Chance Rain Showers then Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Saturday
85°F - Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Saturday Night
66°F - Showers And Thunderstorms Likely
Showers And Thunderstorms Likely
Sunday
77°F - Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Sunday Night
63°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Monday
76°F - Chance Showers And Thunderstorms
Chance Showers And Thunderstorms
Monday Night
60°F - Chance Showers And Thunderstorms
Chance Rain Showers
Tuesday
75°F - Chance Rain Showers

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:49 AM
Sunset: 7:02 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:40 AM
Moon Transit: 5:09 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:39 PM - 7:09 PM

Minor Periods

9:04 PM - 10:34 PM
12:10 AM - 1:40 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:36 AM
Sun Transit: 12:49 AM
Sunset: 7:02 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:40 AM
Moon Transit: 5:09 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:39 PM - 7:09 PM

Minor Periods

9:04 PM - 10:34 PM
12:10 AM - 1:40 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:36 AM
Sun Transit: 12:49 AM
Sunset: 7:02 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:40 AM
Moon Transit: 5:09 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:39 PM - 7:09 PM

Minor Periods

9:04 PM - 10:34 PM
12:10 AM - 1:40 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:36 AM
Sun Transit: 12:49 AM
Sunset: 7:02 PM
Daylight: 12 hrs 25 mins
Moonrise: 12:40 AM
Moon Transit: 5:09 PM
Moonset: 9:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:39 PM - 7:09 PM

Minor Periods

9:04 PM - 10:34 PM
12:10 AM - 1:40 PM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:37 AM
Sun Transit: 12:48 AM
Sunset: 7:00 PM
Daylight: 12 hrs 23 mins
Moonrise: 1:40 PM
Moon Transit: 6:00 PM
Moonset: 10:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

5:15 AM - 7:45 AM
5:30 PM - 8:00 PM

Minor Periods

9:48 PM - 11:18 PM
1:10 PM - 2:40 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:37 AM
Sun Transit: 12:48 AM
Sunset: 7:00 PM
Daylight: 12 hrs 23 mins
Moonrise: 1:40 PM
Moon Transit: 6:00 PM
Moonset: 10:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

5:15 AM - 7:45 AM
5:30 PM - 8:00 PM

Minor Periods

9:48 PM - 11:18 PM
1:10 PM - 2:40 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:38 AM
Sun Transit: 12:48 AM
Sunset: 6:58 PM
Daylight: 12 hrs 20 mins
Moonrise: 2:36 PM
Moon Transit: 6:51 PM
Moonset: 11:08 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

6:07 AM - 8:37 AM
6:21 PM - 8:51 PM

Minor Periods

12:00 AM - 12:00 AM
2:06 PM - 3:36 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:38 AM
Sun Transit: 12:48 AM
Sunset: 6:58 PM
Daylight: 12 hrs 20 mins
Moonrise: 2:36 PM
Moon Transit: 6:51 PM
Moonset: 11:08 PM
Moon Phase: First Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

6:07 AM - 8:37 AM
6:21 PM - 8:51 PM

Minor Periods

12:00 AM - 12:00 AM
2:06 PM - 3:36 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:39 AM
Sun Transit: 12:48 AM
Sunset: 6:57 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:23 PM
Moon Transit: 7:42 PM
Moonset: 12:08 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

6:58 AM - 9:28 AM
7:12 PM - 9:42 PM

Minor Periods

2:53 PM - 4:23 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:39 AM
Sun Transit: 12:48 AM
Sunset: 6:57 PM
Daylight: 12 hrs 17 mins
Moonrise: 3:23 PM
Moon Transit: 7:42 PM
Moonset: 12:08 AM
Moon Phase: First Quarter
Moon Illumination: 54.3%

Best Times for Fishing or Hunting

Major Periods

6:58 AM - 9:28 AM
7:12 PM - 9:42 PM

Minor Periods

2:53 PM - 4:23 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:40 AM
Sun Transit: 12:47 AM
Sunset: 6:55 PM
Daylight: 12 hrs 15 mins
Moonrise: 4:03 PM
Moon Transit: 8:32 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
8:02 PM - 10:32 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:40 AM
Sun Transit: 12:47 AM
Sunset: 6:55 PM
Daylight: 12 hrs 15 mins
Moonrise: 4:03 PM
Moon Transit: 8:32 PM
Moonset: 12:06 AM
Moon Phase: First Quarter
Moon Illumination: 65.4%

Best Times for Fishing or Hunting

Major Periods

7:49 AM - 10:19 AM
8:02 PM - 10:32 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:41 AM
Sun Transit: 12:47 AM
Sunset: 6:53 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:36 PM
Moon Transit: 9:20 PM
Moonset: 1:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
8:50 PM - 11:20 PM

Minor Periods

4:06 PM - 5:36 PM
12:38 AM - 2:08 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:41 AM
Sun Transit: 12:47 AM
Sunset: 6:53 PM
Daylight: 12 hrs 12 mins
Moonrise: 4:36 PM
Moon Transit: 9:20 PM
Moonset: 1:08 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 75.7%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
8:50 PM - 11:20 PM

Minor Periods

4:06 PM - 5:36 PM
12:38 AM - 2:08 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:42 AM
Sun Transit: 12:47 AM
Sunset: 6:52 PM
Daylight: 12 hrs 9 mins
Moonrise: 5:03 PM
Moon Transit: 10:06 PM
Moonset: 2:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 84.7%

Best Times for Fishing or Hunting

Major Periods

9:25 AM - 11:55 AM
12:00 AM - 12:00 AM

Minor Periods

4:33 PM - 6:03 PM
1:43 AM - 3:13 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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