Water Temperature of the Illinois River in La Grange, IL

Current Water Temperature

35.6°F

Measurement Time: Thursday, February 5, 2026, 2:00 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

57.6°F
Partly cloudy
Partly cloudy
55.2°F
56.1°F
57%
SW 10.7 mph
17.4 mph
55°F
45.2°F
0 in
50%
9 mi
1021 mbar
0.4

Five Day Weather Forecast

Sunny
Thu
H: 80°F
L: 51°F
Heavy rain
Fri
H: 59°F
L: 52°F
Cloudy
Sat
H: 60°F
L: 40°F
Patchy rain nearby
Sun
H: 71°F
L: 57°F
Patchy rain nearby
Mon
H: 77°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 4.15 μg/m3
PM10: 4.35 μg/m3
Carbon Monoxide: 163.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 107 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:03 PM
Sunset: 7:34 PM
Daylight: 13 hrs 1 mins
Moonrise: 2:19 AM
Moon Transit: 6:44 AM
Moonset: 11:12 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
6:35 PM - 9:05 PM

Minor Periods

10:42 AM - 12:12 AM
1:49 AM - 3:19 AM

Action Rating: 3 out of 5

Flood Warning issued April 8 at 9:33PM CDT by NWS Lincoln IL

Effective: Wed April 8, 2026, 9:33 PM
Expires: Thu April 9, 2026, 1:45 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Mason and Cass Counties. Illinois River at Beardstown affecting Morgan, Schuyler, Brown 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 further notice. * IMPACTS...At 14.4 feet, Seepage problems begin in the Coal Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 PM CDT Wednesday the stage was 14.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Wednesday was 14.9 feet. - Forecast...The river is expected to rise to a crest of 15.0 feet early Friday morning. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov.


Flood Warning issued April 8 at 9:33PM CDT by NWS Lincoln IL

Effective: Wed April 8, 2026, 9:33 PM
Expires: Thu April 9, 2026, 1:45 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Mason and Cass Counties. Illinois River at Beardstown affecting Morgan, Schuyler, Brown 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 near Havana. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 8:45 PM CDT Wednesday the stage was 15.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Wednesday was 15.7 feet. - Forecast...The river is expected to rise to a crest of 15.9 feet Sunday morning. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov.
Thursday, April 9, 2026

Weather Forecast

Sunny
79.5°F
50.7°F
64.4°F
57%
0 in
0%
0%
15.9 mph
1.4


Air Quality

AQI: 1 - Good
PM2.5: 4.25 μg/m3
PM10: 4.37 μg/m3
Carbon Monoxide: 170.29 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 93.04 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:03 PM
Sunset: 7:34 PM
Daylight: 13 hrs 1 mins
Moonrise: 2:19 AM
Moon Transit: 6:44 AM
Moonset: 11:12 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:14 AM - 8:44 AM
6:35 PM - 9:05 PM

Minor Periods

10:42 AM - 12:12 AM
1:49 AM - 3:19 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Heavy rain
58.6°F
51.8°F
56.5°F
81%
1.75 in
88%
0%
16.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 7.78 μg/m3
PM10: 8.19 μg/m3
Carbon Monoxide: 178.53 μg/m3
Nitrogen Dioxide: 5.6 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 79.96 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:03 PM
Sunset: 7:35 PM
Daylight: 13 hrs 3 mins
Moonrise: 3:00 AM
Moon Transit: 7:34 AM
Moonset: 12:15 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
7:24 PM - 9:54 PM

Minor Periods

11:45 AM - 1:15 PM
2:30 AM - 4:00 AM

Action Rating: 3 out of 5

Saturday, April 11, 2026

Weather Forecast

Cloudy
59.5°F
39.9°F
50.4°F
79%
0 in
0%
0%
14.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 12.89 μg/m3
PM10: 13.51 μg/m3
Carbon Monoxide: 182.37 μg/m3
Nitrogen Dioxide: 5.84 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 78.28 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:03 PM
Sunset: 7:36 PM
Daylight: 13 hrs 6 mins
Moonrise: 3:33 AM
Moon Transit: 8:23 AM
Moonset: 1:20 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:53 AM - 10:23 AM
8:12 PM - 10:42 PM

Minor Periods

12:50 AM - 2:20 PM
3:03 AM - 4:33 AM

Action Rating: 2 out of 5

Sunday, April 12, 2026

Weather Forecast

Patchy rain nearby
71.3°F
56.7°F
63.6°F
84%
0.13 in
88%
0%
21.5 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 7.09 μg/m3
PM10: 7.45 μg/m3
Carbon Monoxide: 170 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 2.46 μg/m3
Ozone: 88.68 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:02 PM
Sunset: 7:37 PM
Daylight: 13 hrs 8 mins
Moonrise: 4:02 AM
Moon Transit: 9:10 AM
Moonset: 2:27 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

8:40 AM - 11:10 AM
8:58 PM - 11:28 PM

Minor Periods

1:57 PM - 3:27 PM
3:32 AM - 5:02 AM

Action Rating: 2 out of 5

Monday, April 13, 2026

Weather Forecast

Patchy rain nearby
76.6°F
64°F
68.7°F
84%
0 in
83%
0%
20.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.17 μg/m3
PM10: 3.27 μg/m3
Carbon Monoxide: 143.53 μg/m3
Nitrogen Dioxide: 2.77 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 85.62 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:02 PM
Sunset: 7:39 PM
Daylight: 13 hrs 11 mins
Moonrise: 4:28 AM
Moon Transit: 9:56 AM
Moonset: 3:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:26 AM - 11:56 AM

Minor Periods

3:04 PM - 4:34 PM
3:58 AM - 5:28 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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