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

35.1°F
Moderate snow
Moderate snow
25°F
33.6°F
93%
NNW 16.3 mph
19.8 mph
22.7°F
32.1°F
0.07 in
100%
6 mi
993 mbar
0

Five Day Weather Forecast

Heavy rain
Sun
H: 61°F
L: 32°F
Moderate or heavy snow showers
Mon
H: 28°F
L: 19°F
Patchy moderate snow
Tue
H: 30°F
L: 15°F
Moderate rain
Wed
H: 48°F
L: 26°F
Cloudy
Thu
H: 59°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 1.95 μg/m3
PM10: 2.05 μg/m3
Carbon Monoxide: 165.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 7:01 PM
Daylight: 11 hrs 55 mins
Moonrise: 5:31 AM
Moon Transit: 10:24 AM
Moonset: 3:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:54 AM - 12:24 AM

Minor Periods

2:56 PM - 4:26 PM
5:01 AM - 6:31 AM

Action Rating: 2 out of 5

Wind Advisory issued March 15 at 9:49AM CDT until March 15 at 9:00PM CDT by NWS Chicago IL

Effective: Sun March 15, 2026, 9:49 AM
Expires: Sun March 15, 2026, 8:00 PM

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Livingston, La Salle, Eastern Will, Grundy, Northern Will, Southern Cook, and Southern Will Counties. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Winter Weather Advisory issued March 15 at 6:51PM CDT until March 16 at 1:00PM CDT by NWS Chicago IL

Effective: Sun March 15, 2026, 6:51 PM
Expires: Mon March 16, 2026, 5:00 AM

* WHAT...Snow and blowing snow expected. Total snow accumulations 1 to 3 inches. Winds gusting as high as 45 mph. * WHERE...Livingston, Central Cook, Eastern Will, Grundy, Northern Will, Southern Cook, and Southern Will Counties. * WHEN...From 1 AM to 1 PM CDT Monday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Monday morning commute. Gusty winds could bring down tree branches.

Slow down and use caution while traveling. The latest road conditions for Illinois can be obtained at www.gettingaroundillinois.com.


Winter Weather Advisory issued March 15 at 9:27AM CDT until March 16 at 1:00PM CDT by NWS Chicago IL

Effective: Sun March 15, 2026, 9:27 AM
Expires: Sun March 15, 2026, 7:30 PM

* WHAT...Snow and blowing snow expected. Total snow accumulations between 1 and 3 inches. Winds gusting as high as 45 mph. * WHERE...De Kalb, La Salle, DuPage, Kane, Kendall, Lake IL, McHenry, and Northern Cook Counties. * WHEN...From 10 PM this evening to 1 PM CDT Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Additionally, the combination of snow and blowing snow will result in periods of reduced visibilities, which will make for hazardous travel at times. The hazardous conditions will impact the Monday morning commute. Gusty winds could bring down tree branches.

Slow down and use caution while traveling. The latest road conditions for Illinois can be obtained at www.gettingaroundillinois.com. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Winter Weather Advisory issued March 15 at 6:51PM CDT until March 16 at 1:00PM CDT by NWS Chicago IL

Effective: Sun March 15, 2026, 6:51 PM
Expires: Mon March 16, 2026, 5:00 AM

* WHAT...Snow and blowing snow expected. Total snow accumulations between 1 and 4 inches and ice accumulations around a light glaze. Winds gusting as high as 45 mph. * WHERE...La Salle, DuPage, Kane, Kendall, Lake IL, and Northern Cook Counties. * WHEN...From 10 PM this evening to 1 PM CDT Monday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions will impact the Monday morning commute. Gusty winds could bring down tree branches.

Slow down and use caution while traveling. The latest road conditions for Illinois can be obtained at www.gettingaroundillinois.com. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.


Wind Advisory issued March 15 at 9:49AM CDT until March 15 at 9:00PM CDT by NWS Chicago IL

Effective: Sun March 15, 2026, 9:49 AM
Expires: Sun March 15, 2026, 8:00 PM

* WHAT...South winds 20 to 30 mph with gusts up to 50 mph expected. * WHERE...Central Cook, DuPage, Kane, Kendall, Lake IL, and Northern Cook Counties. * WHEN...From 1 PM this afternoon to 9 PM CDT this evening. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles on west to east oriented roadways.
Sunday, March 15, 2026

Weather Forecast

Heavy rain
61.3°F
31.6°F
46.7°F
74%
1.09 in
86%
6%
25.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.61 μg/m3
PM10: 6.4 μg/m3
Carbon Monoxide: 170.81 μg/m3
Nitrogen Dioxide: 5.07 μg/m3
Sulphur Dioxide: 3.82 μg/m3
Ozone: 83.76 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 7:01 PM
Daylight: 11 hrs 55 mins
Moonrise: 5:31 AM
Moon Transit: 10:24 AM
Moonset: 3:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:54 AM - 12:24 AM

Minor Periods

2:56 PM - 4:26 PM
5:01 AM - 6:31 AM

Action Rating: 2 out of 5

Monday, March 16, 2026

Weather Forecast

Moderate or heavy snow showers
27.7°F
19.2°F
24°F
80%
0.33 in
67%
40%
23.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 3.22 μg/m3
PM10: 3.59 μg/m3
Carbon Monoxide: 179.01 μg/m3
Nitrogen Dioxide: 3.33 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 85.64 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 12:00 AM
Sunset: 7:02 PM
Daylight: 11 hrs 58 mins
Moonrise: 5:58 AM
Moon Transit: 11:12 AM
Moonset: 4:37 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:42 AM - 1:12 PM

Minor Periods

4:07 PM - 5:37 PM
5:28 AM - 6:58 AM

Action Rating: 3 out of 5

Tuesday, March 17, 2026

Weather Forecast

Patchy moderate snow
29.8°F
14.7°F
22.5°F
64%
0.03 in
72%
3%
15.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.93 μg/m3
PM10: 5.23 μg/m3
Carbon Monoxide: 186.93 μg/m3
Nitrogen Dioxide: 3.09 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 87.8 μg/m3

Astronomical

Sunrise: 7:03 AM
Sun Transit: 12:00 AM
Sunset: 7:03 PM
Daylight: 12 hrs 1 mins
Moonrise: 6:22 AM
Moon Transit: 11:58 AM
Moonset: 5:47 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:28 AM - 1:58 PM

Minor Periods

5:17 PM - 6:47 PM
5:52 AM - 7:22 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Moderate rain
47.7°F
25.7°F
35.3°F
87%
0.65 in
79%
32%
11.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 8 μg/m3
PM10: 8.79 μg/m3
Carbon Monoxide: 193.28 μg/m3
Nitrogen Dioxide: 4.86 μg/m3
Sulphur Dioxide: 1.93 μg/m3
Ozone: 86.6 μg/m3

Astronomical

Sunrise: 7:01 AM
Sun Transit: 12:00 AM
Sunset: 7:05 PM
Daylight: 12 hrs 4 mins
Moonrise: 6:45 AM
Moon Transit: 12:45 AM
Moonset: 6:58 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:03 AM - 2:33 AM
12:15 AM - 2:45 PM

Minor Periods

6:28 PM - 7:58 PM
6:15 AM - 7:45 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Cloudy
58.6°F
28.2°F
42°F
87%
0 in
0%
0%
8.7 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 14.38 μg/m3
PM10: 15.34 μg/m3
Carbon Monoxide: 238.76 μg/m3
Nitrogen Dioxide: 7.06 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 64.77 μg/m3

Astronomical

Sunrise: 6:59 AM
Sun Transit: 12:00 AM
Sunset: 7:06 PM
Daylight: 12 hrs 6 mins
Moonrise: 7:07 AM
Moon Transit: 12:31 AM
Moonset: 8:12 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:01 AM - 2:31 AM

Minor Periods

7:42 PM - 9:12 PM
6:37 AM - 8:07 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.

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