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

64°F
Overcast
Overcast
64°F
71.6°F
98%
SSW 12.8 mph
19.3 mph
70°F
63.1°F
0 in
100%
9 mi
1012 mbar
0.7

Five Day Weather Forecast

Moderate rain
Wed
H: 82°F
L: 66°F
Moderate rain
Thu
H: 80°F
L: 55°F
Partly Cloudy
Fri
H: 81°F
L: 59°F
Patchy rain nearby
Sat
H: 69°F
L: 45°F
Sunny
Sun
H: 53°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.45 μg/m3
Carbon Monoxide: 139.85 μg/m3
Nitrogen Dioxide: 2.15 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 1:02 PM
Sunset: 7:41 PM
Daylight: 13 hrs 16 mins
Moonrise: 5:15 AM
Moon Transit: 10:33 AM
Moonset: 5:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:24 PM - 6:54 PM
4:45 AM - 6:15 AM

Action Rating: 3 out of 5

Flood Warning issued April 14 at 8:55PM CDT by NWS Lincoln IL

Effective: Tue April 14, 2026, 8:55 PM
Expires: Wed April 15, 2026, 1:00 PM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Beardstown affecting Schuyler, Cass, Morgan and Brown Counties. ...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 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 7:45 PM CDT Tuesday the stage was 15.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Tuesday was 15.1 feet. - Forecast...The river is expected to remain steady above flood stage at 15.0 feet for the next several days. - 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. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.


Flood Warning issued April 14 at 8:55PM CDT by NWS Lincoln IL

Effective: Tue April 14, 2026, 8:55 PM
Expires: Wed April 15, 2026, 1:00 PM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River at Beardstown affecting Schuyler, Cass, Morgan and Brown Counties. ...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. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 7:45 PM CDT Tuesday the stage was 15.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:45 PM CDT Tuesday was 15.5 feet. - Forecast...The river is expected to remain steady above flood stage at 15.4 feet for the next several days. - 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. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov.


Flood Warning issued April 14 at 11:11AM CDT until April 17 at 1:00AM CDT by NWS St Louis MO

Effective: Tue April 14, 2026, 11:11 AM
Expires: Wed April 15, 2026, 11:15 PM

...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Clarksville. Mississippi River at Louisiana. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Saverton. Mississippi River at Hannibal. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is forecast. * WHERE...Mississippi River at Saverton. * WHEN...From late tonight to late Thursday night. * IMPACTS...At 15.5 feet, An access road to riverside raised homes on the riverward side of the Sny levee begins to flood near this level. * ADDITIONAL DETAILS... - At 8:00 AM CDT Tuesday the stage was 15.7 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight to a crest of 16.1 feet tomorrow morning. It will then fall below flood stage tomorrow evening. - Flood stage is 16.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx


Flood Warning issued April 14 at 11:11AM CDT until April 18 at 7:00PM CDT by NWS St Louis MO

Effective: Tue April 14, 2026, 11:11 AM
Expires: Wed April 15, 2026, 11:15 PM

...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Clarksville. Mississippi River at Louisiana. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Saverton. Mississippi River at Hannibal. Mississippi River at Winfield. 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 Saturday evening. * IMPACTS...At 17.0 feet, John Hay Recreation Area on east side (inside the Illinois Sny Levee) begins flooding. * ADDITIONAL DETAILS... - At 10:15 AM CDT Tuesday the stage was 17.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:15 AM CDT Tuesday was 17.5 feet. - Forecast...The river is expected to rise to a crest of 17.5 feet this afternoon. It will then fall below flood stage early Friday afternoon. - Flood stage is 17.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx


Flood Warning issued April 14 at 11:11AM CDT until April 20 at 7:00PM CDT by NWS St Louis MO

Effective: Tue April 14, 2026, 11:11 AM
Expires: Wed April 15, 2026, 11:15 PM

...The Flood Warning is extended for the following rivers in Illinois...Missouri... Mississippi River at Clarksville. Mississippi River at Louisiana. ...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Saverton. Mississippi River at Hannibal. Mississippi River at Winfield. 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 Monday evening. * IMPACTS...At 15.0 feet, The first quarter mile of Edison Avenue beyond the railroad tracks begins flooding near this height. * ADDITIONAL DETAILS... - At 11:00 AM CDT Tuesday the stage was 16.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Tuesday was 16.3 feet. - Forecast...The river is expected to rise to a crest of 16.4 feet this evening. It will then fall below flood stage early Sunday afternoon. - Flood stage is 15.0 feet.

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions change. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx


Wednesday, April 15, 2026

Weather Forecast

Moderate rain
81.5°F
66.4°F
71.4°F
80%
0.6 in
89%
0%
26.6 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 6.65 μg/m3
PM10: 7.18 μg/m3
Carbon Monoxide: 140.37 μg/m3
Nitrogen Dioxide: 2.95 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 75.72 μg/m3

Astronomical

Sunrise: 6:24 AM
Sun Transit: 1:02 PM
Sunset: 7:41 PM
Daylight: 13 hrs 16 mins
Moonrise: 5:15 AM
Moon Transit: 10:33 AM
Moonset: 5:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:24 PM - 6:54 PM
4:45 AM - 6:15 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Moderate rain
79.7°F
55.2°F
67.5°F
69%
0.28 in
80%
0%
19.9 mph
1.8


Air Quality

AQI: 1 - Good
PM2.5: 6.32 μg/m3
PM10: 7.92 μg/m3
Carbon Monoxide: 145.45 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 82.44 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:01 PM
Sunset: 7:42 PM
Daylight: 13 hrs 19 mins
Moonrise: 5:39 AM
Moon Transit: 12:17 AM
Moonset: 7:08 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:47 AM - 2:17 PM

Minor Periods

6:38 PM - 8:08 PM
5:09 AM - 6:39 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Partly Cloudy
81°F
59°F
70.2°F
78%
0 in
0%
0%
17.2 mph
1.9


Air Quality

AQI: 1 - Good
PM2.5: 7.41 μg/m3
PM10: 8.74 μg/m3
Carbon Monoxide: 167.85 μg/m3
Nitrogen Dioxide: 6.68 μg/m3
Sulphur Dioxide: 1.67 μg/m3
Ozone: 80.24 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:01 PM
Sunset: 7:43 PM
Daylight: 13 hrs 21 mins
Moonrise: 6:07 AM
Moon Transit: 1:09 PM
Moonset: 8:26 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:08 AM - 2:38 AM
12:39 AM - 3:09 PM

Minor Periods

7:56 PM - 9:26 PM
5:37 AM - 7:07 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Patchy rain nearby
69.1°F
44.8°F
60.5°F
66%
0.03 in
84%
0%
25.9 mph
1.7


Air Quality

AQI: 1 - Good
PM2.5: 4.14 μg/m3
PM10: 4.45 μg/m3
Carbon Monoxide: 152.43 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 79.36 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 1:01 PM
Sunset: 7:44 PM
Daylight: 13 hrs 24 mins
Moonrise: 6:39 AM
Moon Transit: 2:06 PM
Moonset: 9:46 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

1:02 AM - 3:32 AM
1:36 PM - 4:06 PM

Minor Periods

9:16 PM - 10:46 PM
6:09 AM - 7:39 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
52.7°F
39.5°F
44.2°F
52%
0 in
0%
0%
19.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 3.29 μg/m3
PM10: 3.53 μg/m3
Carbon Monoxide: 156.98 μg/m3
Nitrogen Dioxide: 3.41 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 79.46 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:01 PM
Sunset: 7:45 PM
Daylight: 13 hrs 26 mins
Moonrise: 7:19 AM
Moon Transit: 3:07 PM
Moonset: 11:05 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

2:01 AM - 4:31 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
6:49 AM - 8:19 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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