Water Temperature of the Illinois River in La Grange, IL

Current Water Temperature

72.0°F

Measurement Time: Friday, May 29, 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

79.5°F
Sunny
Sunny
80.5°F
80.4°F
56%
SE 6 mph
12.7 mph
79.1°F
58.2°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Fri
H: 89°F
L: 58°F
Sunny
Sat
H: 80°F
L: 63°F
Patchy rain nearby
Sun
H: 71°F
L: 59°F
Sunny
Mon
H: 82°F
L: 58°F
Partly Cloudy
Tue
H: 79°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 7.65 μg/m3
PM10: 8.75 μg/m3
Carbon Monoxide: 151.85 μg/m3
Nitrogen Dioxide: 5.65 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 46 mins
Moonrise: 7:18 PM
Moon Transit: 12:00 AM
Moonset: 4:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:03 AM - 1:33 PM

Minor Periods

6:48 PM - 8:18 PM
3:37 AM - 5:07 AM

Action Rating: 4 out of 5

Friday, May 29, 2026

Weather Forecast

Sunny
88.7°F
57.7°F
74.5°F
54%
0 in
0%
0%
8.3 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 7.76 μg/m3
PM10: 8.78 μg/m3
Carbon Monoxide: 144.14 μg/m3
Nitrogen Dioxide: 7.14 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 79.21 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:00 PM
Sunset: 8:23 PM
Daylight: 14 hrs 46 mins
Moonrise: 7:18 PM
Moon Transit: 12:00 AM
Moonset: 4:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:03 AM - 1:33 PM

Minor Periods

6:48 PM - 8:18 PM
3:37 AM - 5:07 AM

Action Rating: 4 out of 5

Saturday, May 30, 2026

Weather Forecast

Sunny
79.6°F
62.8°F
71.7°F
63%
0 in
0%
0%
11 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 7.41 μg/m3
PM10: 8.18 μg/m3
Carbon Monoxide: 177.52 μg/m3
Nitrogen Dioxide: 10.98 μg/m3
Sulphur Dioxide: 1.99 μg/m3
Ozone: 78.42 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 48 mins
Moonrise: 8:20 PM
Moon Transit: 12:01 AM
Moonset: 4:39 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:51 AM - 2:21 PM

Minor Periods

7:50 PM - 9:20 PM
4:09 AM - 5:39 AM

Action Rating: 4 out of 5

Sunday, May 31, 2026

Weather Forecast

Patchy rain nearby
71.3°F
59.2°F
64.1°F
79%
0.03 in
87%
0%
12.8 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.79 μg/m3
PM10: 6.15 μg/m3
Carbon Monoxide: 149.02 μg/m3
Nitrogen Dioxide: 5.65 μg/m3
Sulphur Dioxide: 2.06 μg/m3
Ozone: 72.75 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:00 PM
Sunset: 8:24 PM
Daylight: 14 hrs 49 mins
Moonrise: 9:18 PM
Moon Transit: 12:50 AM
Moonset: 5:18 AM
Moon Phase: Full
Moon Illumination: 99.6%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
12:41 AM - 3:11 PM

Minor Periods

8:48 PM - 10:18 PM
4:48 AM - 6:18 AM

Action Rating: 4 out of 5

Monday, June 1, 2026

Weather Forecast

Sunny
82.4°F
58.1°F
70.4°F
71%
0 in
0%
0%
11.2 mph
9


Air Quality

AQI: 1 - Good
PM2.5: 5.24 μg/m3
PM10: 5.65 μg/m3
Carbon Monoxide: 171.05 μg/m3
Nitrogen Dioxide: 4.42 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 79.29 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:00 PM
Sunset: 8:25 PM
Daylight: 14 hrs 50 mins
Moonrise: 10:10 PM
Moon Transit: 1:41 AM
Moonset: 6:04 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:32 PM - 4:02 PM

Minor Periods

9:40 PM - 11:10 PM
5:34 AM - 7:04 AM

Action Rating: 4 out of 5

Tuesday, June 2, 2026

Weather Forecast

Partly Cloudy
78.8°F
59.2°F
68.7°F
62%
0 in
0%
0%
10.3 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 4.8 μg/m3
PM10: 5.04 μg/m3
Carbon Monoxide: 173.88 μg/m3
Nitrogen Dioxide: 10.41 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 57.88 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:00 PM
Sunset: 8:26 PM
Daylight: 14 hrs 51 mins
Moonrise: 10:55 PM
Moon Transit: 2:32 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
2:24 PM - 4:54 PM

Minor Periods

10:25 PM - 11:55 PM
6:27 AM - 7:57 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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