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

87.3°F
Sunny
Sunny
91.8°F
100.4°F
68%
NW 6.7 mph
13.5 mph
91.6°F
72.3°F
0 in
0%
9 mi
1012 mbar
0.4

Five Day Weather Forecast

Sunny
Sat
H: 96°F
L: 72°F
Sunny
Sun
H: 84°F
L: 70°F
Sunny
Mon
H: 90°F
L: 68°F
Sunny
Tue
H: 89°F
L: 67°F
Partly Cloudy
Wed
H: 76°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 4.5 μg/m3
PM10: 5.7 μg/m3
Carbon Monoxide: 117 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 93 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

Flood Warning issued July 18 at 9:42AM CDT until July 19 at 7:00AM CDT by NWS Lincoln IL

Effective: Sat July 18, 2026, 9:42 AM
Expires: Sun July 19, 2026, 1:45 AM

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Morgan, Schuyler and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until tomorrow morning. * IMPACTS...At 14.4 feet, Seepage problems begin in the Coal Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 14.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 14.9 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 9.8 feet Saturday, July 25. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Persons with interests along this river need to remain aware of the latest forecasts and associated flood risk for their area. Stay tuned for further updates on this flooding situation. Additional information is available at www.weather.gov.
Saturday, July 18, 2026

Weather Forecast

Sunny
96.3°F
72.1°F
83.2°F
72%
1 in
68%
0%
13.2 mph
10


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 5.64 μg/m3
Carbon Monoxide: 118.96 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 75.79 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

Sunny
84.1°F
70.2°F
77.3°F
82%
0.01 in
27%
0%
8.7 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 6.95 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 186.17 μg/m3
Nitrogen Dioxide: 6.45 μg/m3
Sulphur Dioxide: 1.26 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
90.3°F
67.9°F
78.7°F
82%
0 in
13%
0%
10.5 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 5.08 μg/m3
PM10: 5.31 μg/m3
Carbon Monoxide: 184.92 μg/m3
Nitrogen Dioxide: 6.38 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 94.21 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
88.7°F
67.4°F
80.7°F
70%
0 in
7%
0%
16.1 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 4.68 μg/m3
Carbon Monoxide: 128.53 μg/m3
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 90.67 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

Wednesday, July 22, 2026

Weather Forecast

Partly Cloudy
75.5°F
61.5°F
67.9°F
78%
0 in
11%
0%
12.5 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 2.43 μg/m3
PM10: 2.45 μg/m3
Carbon Monoxide: 204.88 μg/m3
Nitrogen Dioxide: 4.89 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 69.5 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:08 PM
Sunset: 8:25 PM
Daylight: 14 hrs 33 mins
Moonrise: 3:02 PM
Moon Transit: 7:54 PM
Moonset: 12:11 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:56 AM - 9:26 AM
7:24 PM - 9:54 PM

Minor Periods

2:32 PM - 4:02 PM
12:00 AM - 12:00 AM

Action Rating: 2 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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