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

77.4°F
Clear
Clear
81.9°F
83°F
100%
S 8.1 mph
16.9 mph
78.1°F
73.3°F
0 in
0%
9 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 95°F
L: 76°F
Sunny
Tue
H: 92°F
L: 72°F
Sunny
Wed
H: 93°F
L: 73°F
Sunny
Thu
H: 92°F
L: 70°F
Sunny
Fri
H: 92°F
L: 70°F

Air Quality

PM2.5: 7.9 μg/m3
PM10: 8.7 μg/m3
Carbon Monoxide: 123 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 39 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:05 PM
Sunset: 8:35 PM
Daylight: 14 hrs 59 mins
Moonrise: 8:53 PM
Moon Transit: 12:28 AM
Moonset: 4:52 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:20 AM - 2:50 PM

Minor Periods

8:23 PM - 9:53 PM
4:22 AM - 5:52 AM

Action Rating: 5 out of 5

Flood Warning issued June 28 at 10:31AM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 10:31 AM
Expires: Mon June 29, 2026, 2:45 AM

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Henry affecting Putnam and Marshall Counties. Illinois River at Peoria affecting Peoria, Woodford and Tazewell Counties. Illinois River at Beardstown affecting Morgan, Brown, Schuyler and Cass Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until further notice. * IMPACTS...At 20.0 feet, Seepage problems begin in the South Beardstown Drainage and Levee District. * ADDITIONAL DETAILS... - At 9:45 AM CDT Sunday the stage was 21.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Sunday was 21.4 feet. - Forecast...The river is expected to fall to 18.0 feet Sunday, July 05. - 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 June 28 at 11:37AM CDT by NWS St Louis MO

Effective: Sun June 28, 2026, 11:37 AM
Expires: Mon June 29, 2026, 11:45 PM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Hardin. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at La Grange LD. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 26.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Sunday was 26.3 feet. - Forecast...The river is expected to fall to 23.1 feet Sunday, July 05. - Flood stage is 23.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx


Flood Warning issued June 28 at 8:36PM CDT until July 6 at 4:00PM CDT by NWS St Louis MO

Effective: Sun June 28, 2026, 8:36 PM
Expires: Tue June 30, 2026, 8:45 AM

...The Flood Warning continues for the Illinois river at the following locations... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Hardin. Illinois River at Valley City. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at La Grange LD. * WHEN...Until Monday, July 06. * ADDITIONAL DETAILS... - At 8:00 PM CDT Sunday the stage was 26.2 feet. - Forecast...The river is expected to fall below flood stage Sunday, July 05 and continue falling to 22.7 feet Sunday, July 05. - Flood stage is 23.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx


Flood Warning issued June 28 at 8:28PM CDT by NWS Lincoln IL

Effective: Sun June 28, 2026, 8:28 PM
Expires: Mon June 29, 2026, 12:30 PM

...The Flood Warning continues for the following rivers in Illinois... Illinois River at Peoria affecting Peoria, Tazewell and Woodford Counties. Illinois River at Beardstown affecting Morgan, Brown, Cass and Schuyler Counties. Illinois River near Havana affecting Fulton, Mason and Cass Counties. .The following forecasts are based on observed precipitation, soil moisture conditions, and forecast precipitation. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Illinois River at Beardstown. * WHEN...Until further notice. * IMPACTS...At 20.0 feet, Seepage problems begin in the South Beardstown Drainage and Levee District. * ADDITIONAL DETAILS... - At 7:45 PM CDT Sunday the stage was 21.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Sunday was 21.4 feet. - Forecast...The river is expected to fall to 18.2 feet Sunday, July 05. - 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 June 28 at 11:37AM CDT by NWS St Louis MO

Effective: Sun June 28, 2026, 11:37 AM
Expires: Mon June 29, 2026, 11:45 PM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Hardin. ...The Flood Warning continues for the following rivers in Illinois... Illinois River at Meredosia. Illinois River at La Grange LD. Illinois River at Valley City. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River at Meredosia. * WHEN...Until further notice. * ADDITIONAL DETAILS... - At 11:00 AM CDT Sunday the stage was 20.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Sunday was 20.4 feet. - Forecast...The river is expected to rise to a crest of 20.4 feet this afternoon. - Flood stage is 17.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx
Monday, June 29, 2026

Weather Forecast

Sunny
94.8°F
76.3°F
84°F
77%
0 in
8%
0%
14.3 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 7.95 μg/m3
PM10: 9.53 μg/m3
Carbon Monoxide: 119.04 μg/m3
Nitrogen Dioxide: 2.71 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 64.63 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:05 PM
Sunset: 8:35 PM
Daylight: 14 hrs 59 mins
Moonrise: 8:53 PM
Moon Transit: 12:28 AM
Moonset: 4:52 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:20 AM - 2:50 PM

Minor Periods

8:23 PM - 9:53 PM
4:22 AM - 5:52 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Sunny
92.2°F
71.6°F
82.1°F
76%
0 in
7%
0%
13.6 mph
10.4


Air Quality

AQI: 2 - Moderate
PM2.5: 15.97 μg/m3
PM10: 26.11 μg/m3
Carbon Monoxide: 115.67 μg/m3
Nitrogen Dioxide: 2.48 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 62.96 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:05 PM
Sunset: 8:35 PM
Daylight: 14 hrs 58 mins
Moonrise: 9:33 PM
Moon Transit: 1:19 AM
Moonset: 5:50 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
1:10 PM - 3:40 PM

Minor Periods

9:03 PM - 10:33 PM
5:20 AM - 6:50 AM

Action Rating: 5 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
92.7°F
73.1°F
82.1°F
77%
0.01 in
19%
0%
11.4 mph
10.5


Air Quality

AQI: 1 - Good
PM2.5: 11.27 μg/m3
PM10: 15.41 μg/m3
Carbon Monoxide: 139.68 μg/m3
Nitrogen Dioxide: 3.13 μg/m3
Sulphur Dioxide: 1.36 μg/m3
Ozone: 69.67 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:06 PM
Sunset: 8:35 PM
Daylight: 14 hrs 58 mins
Moonrise: 10:06 PM
Moon Transit: 2:09 AM
Moonset: 6:52 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
1:59 PM - 4:29 PM

Minor Periods

9:36 PM - 11:06 PM
6:22 AM - 7:52 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
91.9°F
69.7°F
80.2°F
81%
0.3 in
72%
0%
20.6 mph
10.3


Air Quality

AQI: 1 - Good
PM2.5: 6.75 μg/m3
PM10: 8.44 μg/m3
Carbon Monoxide: 183.9 μg/m3
Nitrogen Dioxide: 2.99 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 70.6 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:06 PM
Sunset: 8:35 PM
Daylight: 14 hrs 57 mins
Moonrise: 10:35 PM
Moon Transit: 2:57 AM
Moonset: 7:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:27 AM - 4:57 AM
2:45 PM - 5:15 PM

Minor Periods

10:05 PM - 11:35 PM
7:25 AM - 8:55 AM

Action Rating: 2 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
92°F
70°F
80.5°F
81%
0.17 in
68%
0%
9.4 mph
8


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:06 PM
Sunset: 8:35 PM
Daylight: 14 hrs 57 mins
Moonrise: 10:59 PM
Moon Transit: 3:42 AM
Moonset: 8:59 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:12 AM - 5:42 AM
3:30 PM - 6:00 PM

Minor Periods

10:29 PM - 11:59 PM
8:29 AM - 9:59 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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