Water Temperature of the Illinois River in La Grange, IL

Current Water Temperature

77.1°F

Measurement Time: Monday, June 8, 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

75.9°F
Sunny
Sunny
79.9°F
79.9°F
100%
SW 3.4 mph
4.9 mph
75.9°F
71.3°F
0 in
0%
9 mi
1019 mbar
1.3

Five Day Weather Forecast

Sunny
Fri
H: 94°F
L: 71°F
Sunny
Sat
H: 90°F
L: 70°F
Patchy rain nearby
Sun
H: 86°F
L: 71°F
Sunny
Mon
H: 93°F
L: 71°F
Sunny
Tue
H: 88°F
L: 63°F

Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 3 μg/m3
Carbon Monoxide: 167 μg/m3
Nitrogen Dioxide: 6.5 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:08 PM
Sunset: 8:29 PM
Daylight: 14 hrs 41 mins
Moonrise: 9:34 AM
Moon Transit: 4:12 PM
Moonset: 10:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
3:42 PM - 6:12 PM

Minor Periods

10:08 PM - 11:38 PM
9:04 AM - 10:34 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
93.7°F
71.2°F
80.6°F
77%
0.09 in
57%
0%
7.2 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 3.85 μg/m3
PM10: 4.41 μg/m3
Carbon Monoxide: 157.38 μg/m3
Nitrogen Dioxide: 4.88 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 86.88 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:08 PM
Sunset: 8:29 PM
Daylight: 14 hrs 41 mins
Moonrise: 9:34 AM
Moon Transit: 4:12 PM
Moonset: 10:38 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

3:13 AM - 5:43 AM
3:42 PM - 6:12 PM

Minor Periods

10:08 PM - 11:38 PM
9:04 AM - 10:34 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
89.6°F
70°F
79.9°F
80%
0.05 in
57%
0%
14.5 mph
9.9


Air Quality

AQI: 1 - Good
PM2.5: 4.07 μg/m3
PM10: 5.39 μg/m3
Carbon Monoxide: 121.29 μg/m3
Nitrogen Dioxide: 3.93 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 75.71 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:08 PM
Sunset: 8:28 PM
Daylight: 14 hrs 40 mins
Moonrise: 10:44 AM
Moon Transit: 4:57 PM
Moonset: 11:00 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

4:00 AM - 6:30 AM
4:27 PM - 6:57 PM

Minor Periods

12:00 AM - 12:00 AM
10:14 AM - 11:44 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Patchy rain nearby
86.4°F
71.2°F
78.6°F
83%
0.14 in
73%
0%
8.3 mph
4.5


Air Quality

AQI: 1 - Good
PM2.5: 6.41 μg/m3
PM10: 6.65 μg/m3
Carbon Monoxide: 179.08 μg/m3
Nitrogen Dioxide: 5.98 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 88.21 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:08 PM
Sunset: 8:27 PM
Daylight: 14 hrs 38 mins
Moonrise: 11:50 AM
Moon Transit: 5:41 PM
Moonset: 12:00 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

4:45 AM - 7:15 AM
5:11 PM - 7:41 PM

Minor Periods

11:20 AM - 12:50 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, July 20, 2026

Weather Forecast

Sunny
92.5°F
70.9°F
81.2°F
80%
0.23 in
72%
0%
11.9 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 6.77 μg/m3
PM10: 7.12 μg/m3
Carbon Monoxide: 332.54 μg/m3
Nitrogen Dioxide: 5.65 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 101.46 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:08 PM
Sunset: 8:27 PM
Daylight: 14 hrs 37 mins
Moonrise: 12:55 AM
Moon Transit: 6:24 PM
Moonset: 12:22 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
5:54 PM - 8:24 PM

Minor Periods

12:25 AM - 1:55 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Sunny
87.7°F
63°F
74.5°F
78%
0.2 in
68%
0%
14.1 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 5.8 μg/m3
PM10: 7.34 μg/m3
Carbon Monoxide: 197.63 μg/m3
Nitrogen Dioxide: 5.95 μg/m3
Sulphur Dioxide: 2.81 μg/m3
Ozone: 60.63 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 1:08 PM
Sunset: 8:26 PM
Daylight: 14 hrs 35 mins
Moonrise: 1:59 PM
Moon Transit: 7:08 PM
Moonset: 12:46 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:12 AM - 8:42 AM
6:38 PM - 9:08 PM

Minor Periods

1:29 PM - 2:59 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.

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