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

68.9°F
Light rain
Light rain
68.9°F
73.9°F
100%
WSW 10.7 mph
22.5 mph
72.3°F
68°F
1.13 in
100%
6 mi
1009 mbar
0

Five Day Weather Forecast

Heavy rain
Wed
H: 94°F
L: 69°F
Moderate rain
Thu
H: 90°F
L: 61°F
Sunny
Fri
H: 77°F
L: 56°F
Patchy rain nearby
Sat
H: 79°F
L: 61°F
Patchy rain nearby
Sun
H: 72°F
L: 60°F

Air Quality

AQI: 1 - Good
PM2.5: 3.9 μg/m3
PM10: 4.3 μg/m3
Carbon Monoxide: 117 μg/m3
Nitrogen Dioxide: 3.7 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:01 PM
Sunset: 8:31 PM
Daylight: 14 hrs 58 mins
Moonrise: 2:03 AM
Moon Transit: 8:42 AM
Moonset: 3:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
8:32 PM - 11:02 PM

Minor Periods

3:04 PM - 4:34 PM
1:33 AM - 3:03 AM

Action Rating: 3 out of 5

Flood Watch issued June 10 at 10:44AM CDT until June 11 at 7:00AM CDT by NWS St Louis MO

Effective: Wed June 10, 2026, 10:44 AM
Expires: Thu June 11, 2026, 1:45 AM

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of west central Illinois, including the following areas, Adams IL, Brown IL and Pike IL and northeast Missouri, including the following areas, Knox MO, Lewis MO, Marion MO and Shelby MO. * WHEN...Through Thursday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. * ADDITIONAL DETAILS... - Repeated thunderstorms with rain rates of 1 to 2 inches per hour may lead to locally heavy rainfall and flash flooding. Total rain amounts of 3 to 6 inches will be possible in narrow corridors.

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Tornado Watch issued June 10 at 4:02PM CDT until June 10 at 11:00PM CDT by NWS St Louis MO

Effective: Wed June 10, 2026, 4:02 PM
Expires: Wed June 10, 2026, 11:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 305 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 4 COUNTIES IN SOUTHWEST ILLINOIS CALHOUN IN WEST CENTRAL ILLINOIS ADAMS BROWN PIKE IN MISSOURI THIS WATCH INCLUDES 9 COUNTIES IN CENTRAL MISSOURI AUDRAIN IN EAST CENTRAL MISSOURI LINCOLN IN NORTHEAST MISSOURI KNOX LEWIS MARION MONROE PIKE RALLS SHELBY THIS INCLUDES THE CITIES OF BOWLING GREEN, HANNIBAL, MEXICO, MOUNT STERLING, PITTSFIELD, AND QUINCY.


Flood Watch issued June 10 at 11:05AM CDT until June 11 at 7:00AM CDT by NWS Lincoln IL

Effective: Wed June 10, 2026, 11:05 AM
Expires: Wed June 10, 2026, 7:15 PM

* WHAT...Flooding caused by excessive rainfall is possible. * WHERE...Portions of central and west central Illinois, including the following counties, in central Illinois, De Witt, Logan, Marshall, Mason, McLean, Menard, Peoria, Sangamon, Stark, Tazewell and Woodford. In west central Illinois, Cass, Fulton, Knox, Morgan, Schuyler and Scott. * WHEN...Through Thursday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Two rounds of showers and thunderstorms will be capable of producing locally heavy rain across portions of the watch area this afternoon through tonight. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Tornado Watch issued June 10 at 7:06PM CDT until June 10 at 11:00PM CDT by NWS Lincoln IL

Effective: Wed June 10, 2026, 7:06 PM
Expires: Wed June 10, 2026, 11:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 308 IN EFFECT UNTIL 11 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 14 COUNTIES IN CENTRAL ILLINOIS DE WITT LOGAN MARSHALL MASON MCLEAN MENARD PEORIA STARK TAZEWELL WOODFORD IN WEST CENTRAL ILLINOIS CASS FULTON KNOX SCHUYLER THIS INCLUDES THE CITIES OF BEARDSTOWN, BLOOMINGTON, CANTON, CLINTON, EUREKA, GALESBURG, HAVANA, LACON, LINCOLN, NORMAL, PEKIN, PEORIA, PETERSBURG, RUSHVILLE, AND TOULON.


Flood Watch issued June 10 at 7:02PM CDT until June 11 at 7:00AM CDT by NWS Lincoln IL

Effective: Wed June 10, 2026, 7:02 PM
Expires: Thu June 11, 2026, 7:00 AM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of central and west central Illinois, including the following counties, in central Illinois, De Witt, Logan, Marshall, Mason, McLean, Menard, Peoria, Sangamon, Stark, Tazewell and Woodford. In west central Illinois, Cass, Fulton, Knox, Morgan, Schuyler and Scott. * WHEN...Until 7 AM CDT Thursday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Another round of showers and thunderstorms capable of producing heavy rain will move across portions of central Illinois this evening and overnight. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Wednesday, June 10, 2026

Weather Forecast

Heavy rain
93.9°F
69.3°F
82.2°F
75%
3.13 in
69%
0%
16.1 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 6.39 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 118.21 μg/m3
Nitrogen Dioxide: 2.99 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 63.54 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:01 PM
Sunset: 8:31 PM
Daylight: 14 hrs 58 mins
Moonrise: 2:03 AM
Moon Transit: 8:42 AM
Moonset: 3:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:12 AM - 10:42 AM
8:32 PM - 11:02 PM

Minor Periods

3:04 PM - 4:34 PM
1:33 AM - 3:03 AM

Action Rating: 3 out of 5

Thursday, June 11, 2026

Weather Forecast

Moderate rain
89.9°F
61°F
76.7°F
84%
0.76 in
81%
0%
22.6 mph
9.4


Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 115.58 μg/m3
Nitrogen Dioxide: 2.58 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 61.25 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:01 PM
Sunset: 8:31 PM
Daylight: 14 hrs 58 mins
Moonrise: 2:30 AM
Moon Transit: 9:32 AM
Moonset: 4:50 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

9:25 PM - 11:55 PM
9:02 AM - 11:32 AM

Minor Periods

4:20 PM - 5:50 PM
2:00 AM - 3:30 AM

Action Rating: 2 out of 5

Friday, June 12, 2026

Weather Forecast

Sunny
77.2°F
56.3°F
67.2°F
76%
0 in
8%
0%
9.4 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 3.55 μg/m3
PM10: 4.34 μg/m3
Carbon Monoxide: 120.21 μg/m3
Nitrogen Dioxide: 5.66 μg/m3
Sulphur Dioxide: 0.35 μg/m3
Ozone: 68.79 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:02 PM
Sunset: 8:32 PM
Daylight: 14 hrs 59 mins
Moonrise: 3:01 AM
Moon Transit: 10:28 AM
Moonset: 6:09 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:39 PM - 7:09 PM
2:31 AM - 4:01 AM

Action Rating: 2 out of 5

Saturday, June 13, 2026

Weather Forecast

Patchy rain nearby
78.5°F
61°F
69.9°F
81%
0.08 in
62%
0%
13.2 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 3.34 μg/m3
PM10: 3.64 μg/m3
Carbon Monoxide: 128.5 μg/m3
Nitrogen Dioxide: 6.67 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 69.25 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:02 PM
Sunset: 8:32 PM
Daylight: 14 hrs 59 mins
Moonrise: 3:42 AM
Moon Transit: 11:30 AM
Moonset: 7:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:00 AM - 1:30 PM

Minor Periods

6:58 PM - 8:28 PM
3:12 AM - 4:42 AM

Action Rating: 3 out of 5

Sunday, June 14, 2026

Weather Forecast

Patchy rain nearby
71.8°F
59.6°F
65.7°F
70%
0.02 in
36%
0%
12.5 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 1.19 μg/m3
PM10: 1.32 μg/m3
Carbon Monoxide: 114.11 μg/m3
Nitrogen Dioxide: 3.03 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 66.38 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 1:02 PM
Sunset: 8:33 PM
Daylight: 15 hrs mins
Moonrise: 4:34 AM
Moon Transit: 12:36 AM
Moonset: 8:43 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:06 AM - 2:36 PM

Minor Periods

8:13 PM - 9:43 PM
4:04 AM - 5:34 AM

Action Rating: 5 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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