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

40.8°F
Clear
Clear
36.7°F
40.5°F
56%
NE 6 mph
12.5 mph
37.7°F
30°F
0 in
0%
9 mi
1026 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 70°F
L: 37°F
Patchy rain nearby
Tue
H: 74°F
L: 52°F
Patchy rain nearby
Wed
H: 76°F
L: 58°F
Moderate rain
Thu
H: 79°F
L: 59°F
Moderate rain
Fri
H: 72°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 7.15 μg/m3
PM10: 7.75 μg/m3
Carbon Monoxide: 186.85 μg/m3
Nitrogen Dioxide: 7.95 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 53 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:01 PM
Sunset: 7:46 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:09 AM
Moon Transit: 4:11 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

3:04 AM - 5:34 AM
3:41 PM - 6:11 PM

Minor Periods

7:39 AM - 9:09 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Flood Warning issued April 19 at 11:23AM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 11:23 AM
Expires: Mon April 20, 2026, 3:30 AM

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Morgan, Cass and Schuyler 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 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday the stage was 15.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM CDT Sunday was 15.8 feet. - Forecast...The river is expected to rise to a crest of 17.0 feet Wednesday evening. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. 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 April 19 at 8:15PM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 8:15 PM
Expires: Mon April 20, 2026, 12:15 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Beardstown affecting Brown, Morgan, Cass and Schuyler 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 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 7:45 PM CDT Sunday the stage was 15.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Sunday was 15.9 feet. - Forecast...The river is expected to rise to a crest of 17.0 feet Wednesday evening. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. 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.


Frost Advisory issued April 19 at 1:31PM CDT until April 20 at 8:00AM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 1:31 PM
Expires: Mon April 20, 2026, 5:00 AM

* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...From 1 AM to 8 AM CDT Monday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Flood Warning issued April 19 at 11:23AM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 11:23 AM
Expires: Mon April 20, 2026, 3:30 AM

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason 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. * ADDITIONAL DETAILS... - At 10:45 AM CDT Sunday the stage was 15.7 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:45 AM CDT Sunday was 15.7 feet. - Forecast...The river is expected to rise to a crest of 16.8 feet early Thursday afternoon. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. 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 April 19 at 8:16PM CDT by NWS Lincoln IL

Effective: Sun April 19, 2026, 8:16 PM
Expires: Mon April 20, 2026, 12:30 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason 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. * ADDITIONAL DETAILS... - At 7:45 PM CDT Sunday the stage was 15.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Sunday was 15.9 feet. - Forecast...The river is expected to rise to a crest of 16.8 feet early Thursday afternoon. - Flood stage is 14.0 feet. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. 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.
Monday, April 20, 2026

Weather Forecast

Sunny
70°F
36.7°F
51.8°F
55%
0 in
0%
0%
12.5 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 5.7 μg/m3
PM10: 6.55 μg/m3
Carbon Monoxide: 172.09 μg/m3
Nitrogen Dioxide: 4.11 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 85.64 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 1:01 PM
Sunset: 7:46 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:09 AM
Moon Transit: 4:11 PM
Moonset: 12:05 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

3:04 AM - 5:34 AM
3:41 PM - 6:11 PM

Minor Periods

7:39 AM - 9:09 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Patchy rain nearby
73.7°F
51.5°F
62.4°F
72%
0.03 in
81%
0%
20.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 5.47 μg/m3
PM10: 6.21 μg/m3
Carbon Monoxide: 166.21 μg/m3
Nitrogen Dioxide: 3.81 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 94.24 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:00 PM
Sunset: 7:47 PM
Daylight: 13 hrs 31 mins
Moonrise: 9:10 AM
Moon Transit: 5:16 PM
Moonset: 12:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
4:46 PM - 7:16 PM

Minor Periods

8:40 AM - 10:10 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, April 22, 2026

Weather Forecast

Patchy rain nearby
75.5°F
57.8°F
66.1°F
79%
0 in
89%
0%
14.3 mph
5.4


Air Quality

AQI: 1 - Good
PM2.5: 4.39 μg/m3
PM10: 4.77 μg/m3
Carbon Monoxide: 154.13 μg/m3
Nitrogen Dioxide: 3.33 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 88.36 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:00 PM
Sunset: 7:48 PM
Daylight: 13 hrs 33 mins
Moonrise: 10:20 AM
Moon Transit: 6:18 PM
Moonset: 1:20 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

5:13 AM - 7:43 AM
5:48 PM - 8:18 PM

Minor Periods

9:50 AM - 11:20 AM
12:50 AM - 2:20 AM

Action Rating: 2 out of 5

Thursday, April 23, 2026

Weather Forecast

Moderate rain
78.5°F
59.4°F
67.9°F
73%
0.2 in
67%
0%
20.1 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 4.93 μg/m3
PM10: 5.46 μg/m3
Carbon Monoxide: 161.14 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 83.92 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:00 PM
Sunset: 7:49 PM
Daylight: 13 hrs 36 mins
Moonrise: 11:33 AM
Moon Transit: 7:16 PM
Moonset: 2:09 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

6:13 AM - 8:43 AM
6:46 PM - 9:16 PM

Minor Periods

11:03 AM - 12:33 AM
1:39 AM - 3:09 AM

Action Rating: 3 out of 5

Friday, April 24, 2026

Weather Forecast

Moderate rain
71.8°F
54.2°F
63.8°F
84%
0.78 in
87%
0%
19 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.77 μg/m3
PM10: 4.24 μg/m3
Carbon Monoxide: 148.48 μg/m3
Nitrogen Dioxide: 3.59 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 85.38 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 38 mins
Moonrise: 12:47 AM
Moon Transit: 8:08 PM
Moonset: 2:47 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
7:38 PM - 10:08 PM

Minor Periods

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