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

45.9°F
Clear
Clear
44.2°F
48°F
65%
WNW 3.8 mph
8 mph
47.2°F
26.7°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 61°F
L: 43°F
Patchy rain nearby
Thu
H: 64°F
L: 40°F
Patchy rain nearby
Fri
H: 63°F
L: 48°F
Moderate rain
Sat
H: 75°F
L: 49°F
Moderate rain
Sun
H: 62°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 5.25 μg/m3
PM10: 5.45 μg/m3
Carbon Monoxide: 166.85 μg/m3
Nitrogen Dioxide: 9.95 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 46 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:58 AM
Sunset: 8:02 PM
Daylight: 14 hrs 6 mins
Moonrise: 12:14 AM
Moon Transit: 4:37 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
4:28 PM - 6:58 PM

Minor Periods

8:33 AM - 10:03 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Flood Warning issued May 6 at 10:32AM CDT by NWS Lincoln IL

Effective: Wed May 6, 2026, 10:32 AM
Expires: Thu May 7, 2026, 2:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason Counties. Illinois River at Beardstown affecting Morgan, Schuyler, Cass 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 further notice. * IMPACTS...At 18.0 feet, Seepage problems begin in the Lost Creek Drainage and Levee District. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 17.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Wednesday was 17.5 feet. - Forecast...The river is expected to fall to 15.1 feet Wednesday, May 13. - 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 6 at 10:32AM CDT by NWS Lincoln IL

Effective: Wed May 6, 2026, 10:32 AM
Expires: Thu May 7, 2026, 2:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Illinois River near Havana affecting Fulton, Cass and Mason Counties. Illinois River at Beardstown affecting Morgan, Schuyler, Cass 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 further notice. * IMPACTS...At 14.0 feet, Minor flooding begins to agricultural areas not protected by levees. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 15.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:45 AM CDT Wednesday was 16.1 feet. - Forecast...The river is expected to fall to 14.3 feet Wednesday, May 13. - 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 5 at 8:27PM CDT until May 7 at 1:00PM CDT by NWS St Louis MO

Effective: Tue May 5, 2026, 8:27 PM
Expires: Thu May 7, 2026, 8:30 AM

...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 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 Valley City. * WHEN...Until Thursday afternoon. * IMPACTS...At 14.0 feet, The road to Norbut Fish and Wildlife area is flooded. * ADDITIONAL DETAILS... - At 8:00 PM CDT Tuesday the stage was 14.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Tuesday was 14.6 feet. - Forecast...The river is expected to fall below flood stage tomorrow morning and continue falling to 10.8 feet Tuesday, May 12. - Flood stage is 14.0 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 May 5 at 8:27PM CDT until May 8 at 1:00AM CDT by NWS St Louis MO

Effective: Tue May 5, 2026, 8:27 PM
Expires: Thu May 7, 2026, 8:30 AM

...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 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 Hardin. * WHEN...Until late Thursday night. * IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins. * ADDITIONAL DETAILS... - At 8:00 PM CDT Tuesday the stage was 25.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 PM CDT Tuesday was 26.0 feet. - Forecast...The river is expected to fall below flood stage tomorrow evening and continue falling to 22.3 feet Tuesday, May 12. - Flood stage is 25.0 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 May 6 at 10:10AM CDT until May 10 at 1:00PM CDT by NWS St Louis MO

Effective: Wed May 6, 2026, 10:10 AM
Expires: Thu May 7, 2026, 10:15 PM

...The Flood Warning is extended for the following river in Illinois... Illinois River at Hardin. 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 Hardin. * WHEN...Until Sunday afternoon. * IMPACTS...At 25.0 feet, Flood Stage. Lowland flooding of unprotected agricultural land begins. * ADDITIONAL DETAILS... - At 9:30 AM CDT Wednesday the stage was 25.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 AM CDT Wednesday was 25.5 feet. - Forecast...The river is expected to rise to a crest of 25.5 feet tomorrow morning. It will then fall below flood stage Saturday morning. - Flood stage is 25.0 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
Wednesday, May 6, 2026

Weather Forecast

Sunny
60.8°F
43.2°F
51.7°F
59%
0 in
0%
0%
15 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 7.39 μg/m3
PM10: 8.88 μg/m3
Carbon Monoxide: 152.01 μg/m3
Nitrogen Dioxide: 5.31 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 71.48 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 12:58 AM
Sunset: 8:02 PM
Daylight: 14 hrs 6 mins
Moonrise: 12:14 AM
Moon Transit: 4:37 AM
Moonset: 9:03 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

4:07 AM - 6:37 AM
4:28 PM - 6:58 PM

Minor Periods

8:33 AM - 10:03 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 7, 2026

Weather Forecast

Patchy rain nearby
64.4°F
39.6°F
52.2°F
60%
0.03 in
79%
0%
17.9 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 5.09 μg/m3
PM10: 5.39 μg/m3
Carbon Monoxide: 153.69 μg/m3
Nitrogen Dioxide: 6.12 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 72.2 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 12:58 AM
Sunset: 8:03 PM
Daylight: 14 hrs 8 mins
Moonrise: 12:57 AM
Moon Transit: 5:27 AM
Moonset: 10:04 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
5:17 PM - 7:47 PM

Minor Periods

9:34 AM - 11:04 AM
12:27 AM - 1:57 AM

Action Rating: 3 out of 5

Friday, May 8, 2026

Weather Forecast

Patchy rain nearby
63.2°F
47.6°F
54.7°F
85%
0.18 in
83%
0%
14.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.26 μg/m3
PM10: 5.69 μg/m3
Carbon Monoxide: 153.77 μg/m3
Nitrogen Dioxide: 3.68 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 87.4 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 12:58 AM
Sunset: 8:04 PM
Daylight: 14 hrs 10 mins
Moonrise: 1:32 AM
Moon Transit: 6:16 AM
Moonset: 11:07 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

5:46 AM - 8:16 AM
6:05 PM - 8:35 PM

Minor Periods

10:37 AM - 12:07 AM
1:02 AM - 2:32 AM

Action Rating: 3 out of 5

Saturday, May 9, 2026

Weather Forecast

Moderate rain
74.9°F
48.9°F
61.5°F
76%
0.3 in
71%
0%
16.8 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.27 μg/m3
Carbon Monoxide: 168.51 μg/m3
Nitrogen Dioxide: 5.4 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 86.68 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

Moderate rain
61.5°F
47.1°F
54.3°F
69%
0.38 in
89%
0%
15 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 7.37 μg/m3
PM10: 8.33 μg/m3
Carbon Monoxide: 172.97 μg/m3
Nitrogen Dioxide: 8.91 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 73.08 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

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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