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

View Nearby Locations View All Illinois Locations View Locations Near Me

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

48°F

Conditions: Patchy Fog

Humidity: 94%

Wind: 0 mph

Dew Point: 46°F

Weather Forecast

Today
77°F - Patchy Fog then Sunny

Tonight
52°F - Mostly Clear then Patchy Fog

Tuesday
80°F - Patchy Fog then Mostly Sunny

Tuesday Night
63°F - Mostly Cloudy

Wednesday
81°F - Partly Sunny

Wednesday Night
68°F - Mostly Cloudy then Chance Rain Showers

Thursday
76°F - Rain Showers

Thursday Night
57°F - Showers And Thunderstorms

Friday
68°F - Chance Rain Showers

Friday Night
54°F - Partly Cloudy then Slight Chance Rain Showers

Saturday
68°F - Slight Chance Rain Showers

Saturday Night
54°F - Partly Cloudy then Slight Chance Rain Showers

Sunday
68°F - Slight Chance Rain Showers

Sunday Night
53°F - Slight Chance Rain Showers then Partly Cloudy

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:45 AM
Sunset: 6:41 PM
Daylight: 11 hrs 53 mins

Moonrise: 7:25 PM
Moon Transit: 1:54 AM
Moonset: 9:04 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:24 AM - 3:54 AM
2:01 PM - 4:31 PM

Minor Periods

6:55 PM - 8:25 PM
8:34 AM - 10:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:48 AM
Sun Transit: 12:45 AM
Sunset: 6:41 PM
Daylight: 11 hrs 53 mins

Moonrise: 7:25 PM
Moon Transit: 1:54 AM
Moonset: 9:04 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:24 AM - 3:54 AM
2:01 PM - 4:31 PM

Minor Periods

6:55 PM - 8:25 PM
8:34 AM - 10:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:48 AM
Sun Transit: 12:45 AM
Sunset: 6:41 PM
Daylight: 11 hrs 53 mins

Moonrise: 7:25 PM
Moon Transit: 1:54 AM
Moonset: 9:04 AM
Moon Phase: Full
Moon Illumination: 92.4%

Best Times for Fishing or Hunting

Major Periods

1:24 AM - 3:54 AM
2:01 PM - 4:31 PM

Minor Periods

6:55 PM - 8:25 PM
8:34 AM - 10:04 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:49 AM
Sun Transit: 12:44 AM
Sunset: 6:40 PM
Daylight: 11 hrs 50 mins

Moonrise: 7:59 PM
Moon Transit: 2:46 AM
Moonset: 10:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
2:55 PM - 5:25 PM

Minor Periods

7:29 PM - 8:59 PM
9:51 AM - 11:21 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:49 AM
Sun Transit: 12:44 AM
Sunset: 6:40 PM
Daylight: 11 hrs 50 mins

Moonrise: 7:59 PM
Moon Transit: 2:46 AM
Moonset: 10:21 AM
Moon Phase: Waning Gibbous
Moon Illumination: 85.4%

Best Times for Fishing or Hunting

Major Periods

2:16 AM - 4:46 AM
2:55 PM - 5:25 PM

Minor Periods

7:29 PM - 8:59 PM
9:51 AM - 11:21 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:50 AM
Sun Transit: 12:44 AM
Sunset: 6:38 PM
Daylight: 11 hrs 48 mins

Moonrise: 8:42 PM
Moon Transit: 3:42 AM
Moonset: 11:37 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
3:53 PM - 6:23 PM

Minor Periods

8:12 PM - 9:42 PM
11:07 AM - 12:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:50 AM
Sun Transit: 12:44 AM
Sunset: 6:38 PM
Daylight: 11 hrs 48 mins

Moonrise: 8:42 PM
Moon Transit: 3:42 AM
Moonset: 11:37 AM
Moon Phase: Waning Gibbous
Moon Illumination: 76.5%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
3:53 PM - 6:23 PM

Minor Periods

8:12 PM - 9:42 PM
11:07 AM - 12:37 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:51 AM
Sun Transit: 12:44 AM
Sunset: 6:36 PM
Daylight: 11 hrs 45 mins

Moonrise: 9:35 PM
Moon Transit: 4:42 AM
Moonset: 12:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
4:55 PM - 7:25 PM

Minor Periods

9:05 PM - 10:35 PM
12:21 AM - 1:51 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:51 AM
Sun Transit: 12:44 AM
Sunset: 6:36 PM
Daylight: 11 hrs 45 mins

Moonrise: 9:35 PM
Moon Transit: 4:42 AM
Moonset: 12:51 AM
Moon Phase: Waning Gibbous
Moon Illumination: 66.3%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
4:55 PM - 7:25 PM

Minor Periods

9:05 PM - 10:35 PM
12:21 AM - 1:51 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:52 AM
Sun Transit: 12:43 AM
Sunset: 6:35 PM
Daylight: 11 hrs 42 mins

Moonrise: 10:39 PM
Moon Transit: 5:45 AM
Moonset: 1:56 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:15 AM - 7:45 AM
5:58 PM - 8:28 PM

Minor Periods

10:09 PM - 11:39 PM
1:26 PM - 2:56 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:52 AM
Sun Transit: 12:43 AM
Sunset: 6:35 PM
Daylight: 11 hrs 42 mins

Moonrise: 10:39 PM
Moon Transit: 5:45 AM
Moonset: 1:56 PM
Moon Phase: Last Quarter
Moon Illumination: 55.3%

Best Times for Fishing or Hunting

Major Periods

5:15 AM - 7:45 AM
5:58 PM - 8:28 PM

Minor Periods

10:09 PM - 11:39 PM
1:26 PM - 2:56 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:54 AM
Sun Transit: 12:43 AM
Sunset: 6:33 PM
Daylight: 11 hrs 40 mins

Moonrise: 11:52 PM
Moon Transit: 6:47 AM
Moonset: 2:50 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:17 AM - 8:47 AM
6:59 PM - 9:29 PM

Minor Periods

12:00 AM - 12:00 AM
2:20 PM - 3:50 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:54 AM
Sun Transit: 12:43 AM
Sunset: 6:33 PM
Daylight: 11 hrs 40 mins

Moonrise: 11:52 PM
Moon Transit: 6:47 AM
Moonset: 2:50 PM
Moon Phase: Last Quarter
Moon Illumination: 43.9%

Best Times for Fishing or Hunting

Major Periods

6:17 AM - 8:47 AM
6:59 PM - 9:29 PM

Minor Periods

12:00 AM - 12:00 AM
2:20 PM - 3:50 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:55 AM
Sun Transit: 12:43 AM
Sunset: 6:31 PM
Daylight: 11 hrs 37 mins

Moonrise: 12:52 AM
Moon Transit: 7:47 AM
Moonset: 3:32 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
7:57 PM - 10:27 PM

Minor Periods

3:02 PM - 4:32 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

Conditions:

High Temperature: °F

Low Temperature: °F

Average Temperature: °F

Average Humidity: %

Precipitation: in

Chance of Rain: %

Chance of Snow: %

Maximum Wind: mph

UV Index:

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: 6:55 AM
Sun Transit: 12:43 AM
Sunset: 6:31 PM
Daylight: 11 hrs 37 mins

Moonrise: 12:52 AM
Moon Transit: 7:47 AM
Moonset: 3:32 PM
Moon Phase: Last Quarter
Moon Illumination: 32.9%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
7:57 PM - 10:27 PM

Minor Periods

3:02 PM - 4:32 PM
12:00 AM - 12:00 AM

Action Rating: 3 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

Webcams provided by windy.com — add a webcam