Water Temperature of the Illinois River in La Grange, IL

Current Water Temperature

84.4°F

Measurement Time: Wednesday, July 22, 2026, 10:00 AM CDT

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

72.9°F
Sunny
Sunny
74.9°F
76°F
48%
ESE 7.4 mph
8.5 mph
75.2°F
44.9°F
0 in
0%
9 mi
1024 mbar
7.2

Five Day Weather Forecast

Sunny
Thu
H: 82°F
L: 56°F
Overcast
Fri
H: 69°F
L: 61°F
Patchy rain nearby
Sat
H: 90°F
L: 65°F
Sunny
Sun
H: 98°F
L: 76°F
Sunny
Mon
H: 99°F
L: 77°F

Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 4 μg/m3
Carbon Monoxide: 120 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:08 PM
Sunset: 8:24 PM
Daylight: 14 hrs 32 mins
Moonrise: 4:05 PM
Moon Transit: 8:42 PM
Moonset: 12:41 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
8:12 PM - 10:42 PM

Minor Periods

3:35 PM - 5:05 PM
12:11 AM - 1:41 AM

Action Rating: 3 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
81.7°F
56.1°F
69.6°F
57%
0 in
3%
0%
7.8 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 3.48 μg/m3
PM10: 3.69 μg/m3
Carbon Monoxide: 136.67 μg/m3
Nitrogen Dioxide: 7.16 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 69.25 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:08 PM
Sunset: 8:24 PM
Daylight: 14 hrs 32 mins
Moonrise: 4:05 PM
Moon Transit: 8:42 PM
Moonset: 12:41 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:43 AM - 10:13 AM
8:12 PM - 10:42 PM

Minor Periods

3:35 PM - 5:05 PM
12:11 AM - 1:41 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Overcast
69.2°F
60.6°F
64.6°F
80%
0.02 in
46%
0%
8.1 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 4.02 μg/m3
PM10: 4.25 μg/m3
Carbon Monoxide: 146.75 μg/m3
Nitrogen Dioxide: 9.41 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 66.33 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:08 PM
Sunset: 8:24 PM
Daylight: 14 hrs 30 mins
Moonrise: 5:05 PM
Moon Transit: 9:32 PM
Moonset: 1:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:32 AM - 11:02 AM
9:02 PM - 11:32 PM

Minor Periods

4:35 PM - 6:05 PM
12:45 AM - 2:15 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Patchy rain nearby
89.5°F
65.2°F
76.4°F
85%
0.04 in
64%
0%
10.7 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.39 μg/m3
PM10: 4.68 μg/m3
Carbon Monoxide: 142.5 μg/m3
Nitrogen Dioxide: 6.98 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 77.67 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:08 PM
Sunset: 8:23 PM
Daylight: 14 hrs 28 mins
Moonrise: 6:01 PM
Moon Transit: 10:23 PM
Moonset: 1:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:23 AM - 11:53 AM
12:00 AM - 12:00 AM

Minor Periods

5:31 PM - 7:01 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
97.9°F
76°F
85.4°F
74%
0 in
8%
0%
11.4 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 7.88 μg/m3
PM10: 8.3 μg/m3
Carbon Monoxide: 166.7 μg/m3
Nitrogen Dioxide: 11.86 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 83.67 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:08 PM
Sunset: 8:22 PM
Daylight: 14 hrs 26 mins
Moonrise: 6:51 PM
Moon Transit: 11:15 PM
Moonset: 2:46 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:14 AM - 12:44 AM
12:00 AM - 12:00 AM

Minor Periods

6:21 PM - 7:51 PM
2:16 AM - 3:46 AM

Action Rating: 2 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
98.8°F
76.9°F
86.3°F
59%
0 in
3%
0%
12.5 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 7.4 μg/m3
PM10: 7.95 μg/m3
Carbon Monoxide: 298 μg/m3
Nitrogen Dioxide: 14.58 μg/m3
Sulphur Dioxide: 2.51 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:08 PM
Sunset: 8:21 PM
Daylight: 14 hrs 25 mins
Moonrise: 7:33 PM
Moon Transit: 12:00 AM
Moonset: 3:42 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:06 AM - 1:36 PM

Minor Periods

7:03 PM - 8:33 PM
3:12 AM - 4:42 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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