Water Temperature of the Illinois River in Seneca, IL

Current Water Temperature

53.2°F

Measurement Time: Tuesday, April 15, 2025, 5:45 AM CDT

Temperature Locations

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Illinois River

Station Name: ILLINOIS RIVER AT SENECA, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 499 feet

Nearest Address:
511 N 2553rd Rd
Seneca, IL 61341
La Salle County

GPS Coordinates: 41.2997222, -88.6141667

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 (37.1 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

63°F
Overcast
Overcast
63°F
70.5°F
28%
SSW 15.2 mph
17.5 mph
70.8°F
22°F
0 in
100%
9 mi
1019 mbar
3.8

Five Day Weather Forecast

Sunny
Sun
H: 74°F
L: 39°F
Partly Cloudy
Mon
H: 79°F
L: 51°F
Moderate rain
Tue
H: 71°F
L: 53°F
Patchy rain nearby
Wed
H: 50°F
L: 40°F
Heavy rain
Thu
H: 44°F
L: 39°F

Air Quality

AQI: 1 - Good
PM2.5: 5.65 μg/m3
PM10: 5.75 μg/m3
Carbon Monoxide: 183.85 μg/m3
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 3.05 μg/m3
Ozone: 96 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 34 mins
Moonrise: 3:56 PM
Moon Transit: 10:50 PM
Moonset: 5:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

10:08 AM - 12:38 AM
12:00 AM - 12:00 AM

Minor Periods

3:26 PM - 4:56 PM
4:39 AM - 6:09 AM

Action Rating: 2 out of 5

Special Weather Statement issued March 29 at 9:46AM CDT by NWS Quad Cities IA IL

Effective: Sun March 29, 2026, 9:46 AM
Expires: Sun March 29, 2026, 6:00 PM

Gusty south winds gusting up to 30 MPH will combine with mild temperatures, low humidity, and plentiful dried vegetation to produce an Elevated Fire Danger through early this evening. If a fire were to start under these conditions, there would be an increased threat of fire spread and be difficult to control. Outdoor burning is strongly discouraged. Use extra caution while operating outdoor equipment around dry vegetation and do not carelessly discard cigarettes.


Sunday, March 29, 2026

Weather Forecast

Sunny
73.6°F
38.8°F
55.4°F
35%
0 in
0%
0%
15.4 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 9.09 μg/m3
PM10: 9.28 μg/m3
Carbon Monoxide: 189.29 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 4.59 μg/m3
Ozone: 89.68 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 34 mins
Moonrise: 3:56 PM
Moon Transit: 10:50 PM
Moonset: 5:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.2%

Best Times for Fishing or Hunting

Major Periods

10:08 AM - 12:38 AM
12:00 AM - 12:00 AM

Minor Periods

3:26 PM - 4:56 PM
4:39 AM - 6:09 AM

Action Rating: 2 out of 5

Monday, March 30, 2026

Weather Forecast

Partly Cloudy
78.6°F
51.4°F
63.8°F
62%
0 in
0%
0%
16.1 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 6.93 μg/m3
PM10: 7.05 μg/m3
Carbon Monoxide: 177.17 μg/m3
Nitrogen Dioxide: 4.91 μg/m3
Sulphur Dioxide: 2.78 μg/m3
Ozone: 95.44 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 12 hrs 36 mins
Moonrise: 5:04 PM
Moon Transit: 11:34 PM
Moonset: 5:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

10:54 AM - 1:24 PM
12:00 AM - 12:00 AM

Minor Periods

4:34 PM - 6:04 PM
5:02 AM - 6:32 AM

Action Rating: 3 out of 5

Tuesday, March 31, 2026

Weather Forecast

Moderate rain
71.1°F
52.7°F
64.2°F
84%
0.23 in
88%
0%
23.9 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 7.79 μg/m3
PM10: 8.16 μg/m3
Carbon Monoxide: 163.41 μg/m3
Nitrogen Dioxide: 3.84 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 100.04 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 12:00 AM
Sunset: 7:18 PM
Daylight: 12 hrs 39 mins
Moonrise: 6:11 PM
Moon Transit: 12:00 AM
Moonset: 5:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:37 AM - 2:07 PM

Minor Periods

5:41 PM - 7:11 PM
5:23 AM - 6:53 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Patchy rain nearby
49.8°F
39.6°F
45°F
69%
0.18 in
70%
0%
18.1 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.84 μg/m3
PM10: 4.12 μg/m3
Carbon Monoxide: 174.24 μg/m3
Nitrogen Dioxide: 3.92 μg/m3
Sulphur Dioxide: 1.94 μg/m3
Ozone: 86.16 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:00 AM
Sunset: 7:20 PM
Daylight: 12 hrs 42 mins
Moonrise: 7:16 PM
Moon Transit: 12:17 AM
Moonset: 6:14 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

6:46 PM - 8:16 PM
5:44 AM - 7:14 AM

Action Rating: 3 out of 5

Thursday, April 2, 2026

Weather Forecast

Heavy rain
43.5°F
38.9°F
40.9°F
94%
1.57 in
86%
0%
18.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.07 μg/m3
PM10: 4.09 μg/m3
Carbon Monoxide: 189.6 μg/m3
Nitrogen Dioxide: 8.96 μg/m3
Sulphur Dioxide: 3.73 μg/m3
Ozone: 69.54 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:00 AM
Sunset: 7:21 PM
Daylight: 12 hrs 45 mins
Moonrise: 8:21 PM
Moon Transit: 1:00 AM
Moonset: 6:34 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
1:02 PM - 3:32 PM

Minor Periods

7:51 PM - 9:21 PM
6:04 AM - 7:34 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.

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