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

57.9°F
Clear
Clear
55.9°F
59.8°F
54%
ENE 9.8 mph
20.7 mph
58.3°F
44.3°F
0 in
0%
9 mi
1013 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 80°F
L: 46°F
Partly Cloudy
Sun
H: 75°F
L: 49°F
Moderate rain
Mon
H: 80°F
L: 61°F
Patchy rain nearby
Tue
H: 65°F
L: 48°F
Sunny
Wed
H: 62°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 8.25 μg/m3
PM10: 8.85 μg/m3
Carbon Monoxide: 173.85 μg/m3
Nitrogen Dioxide: 7.55 μg/m3
Sulphur Dioxide: 3.75 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:00 PM
Sunset: 7:51 PM
Daylight: 13 hrs 41 mins
Moonrise: 1:58 PM
Moon Transit: 8:56 PM
Moonset: 3:18 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
8:26 PM - 10:56 PM

Minor Periods

1:28 PM - 2:58 PM
2:48 AM - 4:18 AM

Action Rating: 2 out of 5

Flood Warning issued April 25 at 9:47AM CDT by NWS Lincoln IL

Effective: Sat April 25, 2026, 9:47 AM
Expires: Sun April 26, 2026, 2:00 AM

...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 Brown, Schuyler, Morgan 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 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 16.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 16.7 feet. - Forecast...The river is expected to fall to 14.9 feet Saturday, May 02. - 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 25 at 9:47AM CDT by NWS Lincoln IL

Effective: Sat April 25, 2026, 9:47 AM
Expires: Sun April 26, 2026, 2:00 AM

...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 Brown, Schuyler, Morgan 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. * ADDITIONAL DETAILS... - At 8:45 AM CDT Saturday the stage was 16.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:45 AM CDT Saturday was 16.6 feet. - Forecast...The river is expected to fall to 15.0 feet Saturday, May 02. - 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 24 at 9:06PM CDT until May 1 at 1:00PM CDT by NWS St Louis MO

Effective: Fri April 24, 2026, 9:06 PM
Expires: Sun April 26, 2026, 9:15 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Grafton. Mississippi River at Canton. Illinois River at Hardin. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. 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...Mississippi River at Saverton. * WHEN...Until Friday afternoon. * ADDITIONAL DETAILS... - At 6:00 PM CDT Friday the stage was 17.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 6:00 PM CDT Friday was 17.8 feet. - Forecast...The river is expected to rise to a crest of 17.8 feet just after midnight tonight. It will then fall below flood stage Thursday morning. - Flood stage is 16.0 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 April 24 at 9:06PM CDT by NWS St Louis MO

Effective: Fri April 24, 2026, 9:06 PM
Expires: Sun April 26, 2026, 9:15 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Grafton. Mississippi River at Canton. Illinois River at Hardin. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. 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...Mississippi River at Hannibal. * WHEN...Until further notice. * IMPACTS...At 19.0 feet, The Corps of Engineers begins flood fight procedures. At this level, preparations are made to install two flood gates at Hill Street and Center Street if the forecast exceeds 20.5 feet. * ADDITIONAL DETAILS... - At 8:15 PM CDT Friday the stage was 19.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:15 PM CDT Friday was 19.3 feet. - Forecast...The river is expected to fall to 17.0 feet Friday, May 01. - 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


Flood Warning issued April 24 at 9:06PM CDT by NWS St Louis MO

Effective: Fri April 24, 2026, 9:06 PM
Expires: Sun April 26, 2026, 9:15 AM

...The Flood Warning continues for the following rivers in Missouri...Illinois... Mississippi River at Grafton. Mississippi River at Canton. Illinois River at Hardin. Mississippi River at Saverton. Mississippi River at Winfield. Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. 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...Mississippi River at Louisiana. * WHEN...Until further notice. * IMPACTS...At 17.0 feet, The parking area at the boat house floods. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 18.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 18.1 feet. - Forecast...The river is expected to rise to a crest of 18.1 feet just after midnight tonight. - Flood stage is 15.0 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
Saturday, April 25, 2026

Weather Forecast

Sunny
79.9°F
45.7°F
62.2°F
59%
0 in
0%
0%
13.4 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 4.09 μg/m3
PM10: 4.53 μg/m3
Carbon Monoxide: 182.41 μg/m3
Nitrogen Dioxide: 4.77 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 80.16 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:00 PM
Sunset: 7:51 PM
Daylight: 13 hrs 41 mins
Moonrise: 1:58 PM
Moon Transit: 8:56 PM
Moonset: 3:18 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
8:26 PM - 10:56 PM

Minor Periods

1:28 PM - 2:58 PM
2:48 AM - 4:18 AM

Action Rating: 2 out of 5

Sunday, April 26, 2026

Weather Forecast

Partly Cloudy
74.6°F
48.7°F
62.7°F
70%
0 in
0%
0%
13.9 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 7.01 μg/m3
PM10: 7.46 μg/m3
Carbon Monoxide: 183.45 μg/m3
Nitrogen Dioxide: 5.08 μg/m3
Sulphur Dioxide: 2.95 μg/m3
Ozone: 91.16 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:00 PM
Sunset: 7:52 PM
Daylight: 13 hrs 43 mins
Moonrise: 3:05 PM
Moon Transit: 9:41 PM
Moonset: 3:43 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

8:45 AM - 11:15 AM
9:11 PM - 11:41 PM

Minor Periods

2:35 PM - 4:05 PM
3:13 AM - 4:43 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Moderate rain
80.3°F
60.7°F
68.3°F
76%
0.63 in
88%
0%
27.5 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 6.59 μg/m3
PM10: 6.96 μg/m3
Carbon Monoxide: 184.45 μg/m3
Nitrogen Dioxide: 3.79 μg/m3
Sulphur Dioxide: 4.59 μg/m3
Ozone: 101.96 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:00 PM
Sunset: 7:53 PM
Daylight: 13 hrs 45 mins
Moonrise: 4:10 PM
Moon Transit: 10:23 PM
Moonset: 4:06 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

9:28 AM - 11:58 AM
12:00 AM - 12:00 AM

Minor Periods

3:40 PM - 5:10 PM
3:36 AM - 5:06 AM

Action Rating: 2 out of 5

Tuesday, April 28, 2026

Weather Forecast

Patchy rain nearby
64.6°F
48°F
56.2°F
70%
0.01 in
88%
0%
16.3 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 3.31 μg/m3
PM10: 3.53 μg/m3
Carbon Monoxide: 164.63 μg/m3
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 80.92 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:00 PM
Sunset: 7:54 PM
Daylight: 13 hrs 48 mins
Moonrise: 5:13 PM
Moon Transit: 11:05 PM
Moonset: 4:27 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:43 PM - 6:13 PM
3:57 AM - 5:27 AM

Action Rating: 2 out of 5

Wednesday, April 29, 2026

Weather Forecast

Sunny
62.2°F
44.6°F
53.6°F
63%
0 in
0%
0%
13.2 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 3.01 μg/m3
PM10: 3.11 μg/m3
Carbon Monoxide: 184.3 μg/m3
Nitrogen Dioxide: 7.33 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 68.62 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:00 PM
Sunset: 7:55 PM
Daylight: 13 hrs 50 mins
Moonrise: 6:17 PM
Moon Transit: 11:48 PM
Moonset: 4:49 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

10:52 AM - 1:22 PM
12:00 AM - 12:00 AM

Minor Periods

5:47 PM - 7:17 PM
4:19 AM - 5:49 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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