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

75°F
Sunny
Sunny
76.1°F
78°F
39%
WNW 10.5 mph
12.1 mph
78.7°F
50.7°F
0 in
0%
9 mi
1008 mbar
7.2

Five Day Weather Forecast

Sunny
Sat
H: 82°F
L: 49°F
Patchy rain nearby
Sun
H: 65°F
L: 50°F
Sunny
Mon
H: 69°F
L: 45°F
Patchy rain nearby
Tue
H: 73°F
L: 51°F
Patchy rain nearby
Wed
H: 69°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 5.65 μg/m3
PM10: 6.45 μg/m3
Carbon Monoxide: 148.85 μg/m3
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:58 AM
Sunset: 8:05 PM
Daylight: 14 hrs 12 mins
Moonrise: 2:02 AM
Moon Transit: 7:03 AM
Moonset: 12:12 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
6:51 PM - 9:21 PM

Minor Periods

11:42 AM - 1:12 PM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Flood Warning issued May 8 at 9:06PM CDT until May 13 at 7:00PM CDT by NWS Lincoln IL

Effective: Fri May 8, 2026, 9:06 PM
Expires: Sat May 9, 2026, 1:15 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Cass, Fulton and Mason Counties. Illinois River at Beardstown affecting Schuyler, Brown, Cass and Morgan 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 Wednesday evening. * IMPACTS...At 14.4 feet, Seepage problems begin in the Coal Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 16.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 16.6 feet. - Forecast...The river is expected to fall below flood stage early Wednesday afternoon and continue falling to 12.9 feet Friday, May 15. - 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.


Flood Warning issued May 9 at 9:31AM CDT until May 13 at 7:00AM CDT by NWS Lincoln IL

Effective: Sat May 9, 2026, 9:31 AM
Expires: Sun May 10, 2026, 1:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River near Havana affecting Mason, Cass and Fulton Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Cass, Morgan, Schuyler and Brown 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 Wednesday 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 15.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 16.4 feet. - Forecast...The river is expected to fall below flood stage early Wednesday morning and continue falling to 12.7 feet Saturday, May 16. - 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.


Flood Warning issued May 8 at 9:06PM CDT until May 12 at 1:00PM CDT by NWS Lincoln IL

Effective: Fri May 8, 2026, 9:06 PM
Expires: Sat May 9, 2026, 1:15 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Cass, Fulton and Mason Counties. Illinois River at Beardstown affecting Schuyler, Brown, Cass and Morgan 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 early Tuesday afternoon. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 8:45 PM CDT Friday the stage was 15.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 PM CDT Friday was 15.5 feet. - Forecast...The river is expected to fall below flood stage Tuesday morning and continue falling to 12.7 feet Friday, May 15. - 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.


Flood Warning issued May 9 at 9:31AM CDT until May 12 at 7:00PM CDT by NWS Lincoln IL

Effective: Sat May 9, 2026, 9:31 AM
Expires: Sun May 10, 2026, 1:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River near Havana affecting Mason, Cass and Fulton Counties. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Cass, Morgan, Schuyler and Brown 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 Tuesday evening. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 15.3 feet. - Forecast...The river is expected to fall below flood stage early Tuesday afternoon and continue falling to 12.7 feet Saturday, May 16. - 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, May 9, 2026

Weather Forecast

Sunny
82°F
49.3°F
64.2°F
63%
0 in
0%
0%
13.6 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 6.69 μg/m3
PM10: 7.87 μg/m3
Carbon Monoxide: 163.69 μg/m3
Nitrogen Dioxide: 5.88 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 12:58 AM
Sunset: 8:05 PM
Daylight: 14 hrs 12 mins
Moonrise: 2:02 AM
Moon Transit: 7:03 AM
Moonset: 12:12 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:33 AM - 9:03 AM
6:51 PM - 9:21 PM

Minor Periods

11:42 AM - 1:12 PM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Sunday, May 10, 2026

Weather Forecast

Patchy rain nearby
64.5°F
49.7°F
57.3°F
61%
0.02 in
88%
0%
10.5 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 7.26 μg/m3
PM10: 7.85 μg/m3
Carbon Monoxide: 148.13 μg/m3
Nitrogen Dioxide: 4.72 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 81.88 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:58 AM
Sunset: 8:06 PM
Daylight: 14 hrs 14 mins
Moonrise: 2:29 AM
Moon Transit: 7:48 AM
Moonset: 1:17 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:18 AM - 9:48 AM
7:36 PM - 10:06 PM

Minor Periods

12:47 AM - 2:17 PM
1:59 AM - 3:29 AM

Action Rating: 3 out of 5

Monday, May 11, 2026

Weather Forecast

Sunny
69.3°F
45.2°F
58°F
60%
0 in
0%
0%
7.2 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.2 μg/m3
Carbon Monoxide: 148.49 μg/m3
Nitrogen Dioxide: 5.87 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 79.68 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 12:58 AM
Sunset: 8:07 PM
Daylight: 14 hrs 16 mins
Moonrise: 2:52 AM
Moon Transit: 8:32 AM
Moonset: 2:24 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

8:02 AM - 10:32 AM
8:20 PM - 10:50 PM

Minor Periods

1:54 PM - 3:24 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Tuesday, May 12, 2026

Weather Forecast

Patchy rain nearby
73.1°F
51.2°F
62.7°F
70%
0.08 in
68%
0%
19 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 5.52 μg/m3
Carbon Monoxide: 161.01 μg/m3
Nitrogen Dioxide: 4.62 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 89.6 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 12:58 AM
Sunset: 8:08 PM
Daylight: 14 hrs 18 mins
Moonrise: 3:15 AM
Moon Transit: 8:41 PM
Moonset: 3:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

8:11 PM - 10:41 PM
8:11 PM - 10:41 PM

Minor Periods

3:01 PM - 4:31 PM
2:45 AM - 4:15 AM

Action Rating: 4 out of 5

Wednesday, May 13, 2026

Weather Forecast

Patchy rain nearby
68.6°F
51.9°F
60.7°F
67%
0.01 in
60%
0%
16.1 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 4.22 μg/m3
PM10: 4.47 μg/m3
Carbon Monoxide: 159.75 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 79.54 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 12:58 AM
Sunset: 8:09 PM
Daylight: 14 hrs 20 mins
Moonrise: 3:38 AM
Moon Transit: 10:04 AM
Moonset: 4:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:34 AM - 12:04 AM

Minor Periods

4:13 PM - 5:43 PM
3:08 AM - 4:38 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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