Water Temperature of the Illinois River in La Grange, IL

Current Water Temperature

37.7°F

Measurement Time: Sunday, January 4, 2026, 9:00 AM CST

Temperature Locations

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Local Points of Interest

Versailles, IL; Beardstown, IL

Illinois River

Station Name: La Grange L&D 8
Data Source: USGS

Elevation Above Sea Level: 427 feet

Nearest Address:
Lock & Dam Road
La Grange, IL 62378
Cass County

GPS Coordinates: 39.9403, -90.5344

Nearby Water Temperatures

Illinois River, Florence, IL (21.6 mi)
Mason Tazewell Drainage Ditch, Topeka, IL (42.3 mi)
Mississippi River, Saverton, MO (43.4 mi)
Mississippi River, Clarksville, MO (43.9 mi)
Lick Creek, Springfield, IL (46.8 mi)
Mississippi River, Quincy, IL (47.4 mi)
Sugar Creek, Chatham, IL (50.4 mi)
Mississippi River, Canton, MO (53.8 mi)
Mississippi River, Keokuk, IA (54.3 mi)
Mississippi River, Cap Au Gris, MO (65.3 mi)
Illinois River, Peoria, IL (67.7 mi)
Mississippi River, Gladstone, IL (69.9 mi)
Mississippi River, Alton, IL (77 mi)
Missouri River, St Charles, MO (79.8 mi)
Mississippi River, New Boston, IL (90.8 mi)

Weather for La Grange, Illinois

Current Weather

34°F
Clear
Clear
25.7°F
33.2°F
79%
SSW 11 mph
21.6 mph
25.3°F
29.6°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Mist
Mon
H: 38°F
L: 33°F
Overcast
Tue
H: 44°F
L: 35°F
Mist
Wed
H: 50°F
L: 34°F
Partly Cloudy
Thu
H: 57°F
L: 43°F
Moderate rain
Fri
H: 49°F
L: 38°F

Air Quality

PM2.5: 9.95 μg/m3
PM10: 9.95 μg/m3
Carbon Monoxide: 211.85 μg/m3
Nitrogen Dioxide: 6.35 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 33 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:07 AM
Sunset: 4:52 PM
Daylight: 9 hrs 28 mins
Moonrise: 7:41 PM
Moon Transit: 1:58 AM
Moonset: 9:18 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:51 PM - 4:21 PM

Minor Periods

7:11 PM - 8:41 PM
8:48 AM - 10:18 AM

Action Rating: 3 out of 5

Monday, January 5, 2026

Weather Forecast

Mist
37.9°F
32.7°F
35.3°F
93%
0 in
0%
0%
13 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 9.86 μg/m3
PM10: 9.9 μg/m3
Carbon Monoxide: 218.77 μg/m3
Nitrogen Dioxide: 9.34 μg/m3
Sulphur Dioxide: 3.68 μg/m3
Ozone: 37.24 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:07 AM
Sunset: 4:52 PM
Daylight: 9 hrs 28 mins
Moonrise: 7:41 PM
Moon Transit: 1:58 AM
Moonset: 9:18 AM
Moon Phase: Full
Moon Illumination: 93.7%

Best Times for Fishing or Hunting

Major Periods

1:28 AM - 3:58 AM
1:51 PM - 4:21 PM

Minor Periods

7:11 PM - 8:41 PM
8:48 AM - 10:18 AM

Action Rating: 3 out of 5

Tuesday, January 6, 2026

Weather Forecast

Overcast
43.7°F
34.7°F
39.3°F
96%
0 in
0%
0%
15.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 13.43 μg/m3
PM10: 13.5 μg/m3
Carbon Monoxide: 242.61 μg/m3
Nitrogen Dioxide: 8.61 μg/m3
Sulphur Dioxide: 4.13 μg/m3
Ozone: 41.68 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:08 AM
Sunset: 4:53 PM
Daylight: 9 hrs 29 mins
Moonrise: 8:53 PM
Moon Transit: 2:50 AM
Moonset: 9:47 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.1%

Best Times for Fishing or Hunting

Major Periods

2:20 AM - 4:50 AM
2:40 PM - 5:10 PM

Minor Periods

8:23 PM - 9:53 PM
9:17 AM - 10:47 AM

Action Rating: 3 out of 5

Wednesday, January 7, 2026

Weather Forecast

Mist
50°F
34.2°F
40.2°F
85%
0 in
0%
0%
12.5 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 18.33 μg/m3
PM10: 18.41 μg/m3
Carbon Monoxide: 268.43 μg/m3
Nitrogen Dioxide: 9.76 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 26.64 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:08 AM
Sunset: 4:54 PM
Daylight: 9 hrs 30 mins
Moonrise: 10:00 PM
Moon Transit: 3:37 AM
Moonset: 10:11 AM
Moon Phase: Waning Gibbous
Moon Illumination: 78.6%

Best Times for Fishing or Hunting

Major Periods

3:07 AM - 5:37 AM
3:25 PM - 5:55 PM

Minor Periods

9:30 PM - 11:00 PM
9:41 AM - 11:11 AM

Action Rating: 2 out of 5

Thursday, January 8, 2026

Weather Forecast

Partly Cloudy
56.5°F
43.3°F
48.8°F
74%
0 in
0%
0%
8.1 mph
0.3


Air Quality

AQI: 2 - Moderate
PM2.5: 16.42 μg/m3
PM10: 16.47 μg/m3
Carbon Monoxide: 288.23 μg/m3
Nitrogen Dioxide: 12.09 μg/m3
Sulphur Dioxide: 3.88 μg/m3
Ozone: 26.85 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 12:08 AM
Sunset: 4:54 PM
Daylight: 9 hrs 31 mins
Moonrise: 11:04 PM
Moon Transit: 4:21 AM
Moonset: 10:33 AM
Moon Phase: Waning Gibbous
Moon Illumination: 68.7%

Best Times for Fishing or Hunting

Major Periods

3:51 AM - 6:21 AM
4:08 PM - 6:38 PM

Minor Periods

12:00 AM - 12:00 AM
10:03 AM - 11:33 AM

Action Rating: 2 out of 5

Friday, January 9, 2026

Weather Forecast

Moderate rain
48.9°F
37.5°F
46.9°F
93%
0.62 in
89%
0%
21.3 mph
0


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: 7:23 AM
Sun Transit: 12:09 AM
Sunset: 4:55 PM
Daylight: 9 hrs 32 mins
Moonrise: 12:04 AM
Moon Transit: 5:03 AM
Moonset: 10:54 AM
Moon Phase: Waning Gibbous
Moon Illumination: 57.8%

Best Times for Fishing or Hunting

Major Periods

4:33 AM - 7:03 AM
4:49 PM - 7:19 PM

Minor Periods

10:24 AM - 11:54 AM
12:00 AM - 12:00 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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