Water Temperature of the Illinois River in La Grange, IL

Current Water Temperature

40.4°F

Measurement Time: Thursday, January 15, 2026, 9:00 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

27.5°F
Overcast
Overcast
17.2°F
28.9°F
78%
S 11.9 mph
18.4 mph
18.8°F
25.5°F
0.07 in
100%
9 mi
1004 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Fri
H: 40°F
L: 27°F
Overcast
Sat
H: 20°F
L: 15°F
Light freezing rain
Sun
H: 22°F
L: 11°F
Sunny
Mon
H: 18°F
L: 11°F
Partly Cloudy
Tue
H: 12°F
L: 3°F

Air Quality

PM2.5: 4.15 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 138.85 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 2.15 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:12 AM
Sunset: 5:03 PM
Daylight: 9 hrs 41 mins
Moonrise: 6:07 AM
Moon Transit: 10:28 AM
Moonset: 2:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:21 PM - 3:51 PM
5:37 AM - 7:07 AM

Action Rating: 3 out of 5

Special Weather Statement issued January 15 at 9:52PM CST by NWS Lincoln IL

Effective: Thu January 15, 2026, 9:52 PM
Expires: Fri January 16, 2026, 1:00 AM

A band of snow will track east across central and southeast IL tonight. While the snow will only last 1-2 hours in any given location, snowfall rates could reach 1 inch per hour in spots. This will lead to roads quickly becoming snow covered and slippery. Motorists should prepare for brief periods of low visibility and snow covered roads. Slow down and allow extra distance between the vehicle in front of you.


Friday, January 16, 2026

Weather Forecast

Moderate or heavy snow showers
39.7°F
27.3°F
32.9°F
76%
0.21 in
76%
16%
17.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 3.36 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 154.05 μg/m3
Nitrogen Dioxide: 3.81 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 62.32 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:12 AM
Sunset: 5:03 PM
Daylight: 9 hrs 41 mins
Moonrise: 6:07 AM
Moon Transit: 10:28 AM
Moonset: 2:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:21 PM - 3:51 PM
5:37 AM - 7:07 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Overcast
20.1°F
15.1°F
19.8°F
58%
0 in
0%
3%
17.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.91 μg/m3
PM10: 2.06 μg/m3
Carbon Monoxide: 158.23 μg/m3
Nitrogen Dioxide: 2.46 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 67.44 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 12:12 AM
Sunset: 5:04 PM
Daylight: 9 hrs 43 mins
Moonrise: 6:54 AM
Moon Transit: 11:20 AM
Moonset: 3:51 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:50 AM - 1:20 PM

Minor Periods

3:21 PM - 4:51 PM
6:24 AM - 7:54 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Light freezing rain
22.4°F
10.9°F
16.6°F
51%
0 in
71%
7%
12.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.93 μg/m3
PM10: 3.24 μg/m3
Carbon Monoxide: 171.89 μg/m3
Nitrogen Dioxide: 3.99 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 64.54 μg/m3

Astronomical

Sunrise: 7:20 AM
Sun Transit: 12:12 AM
Sunset: 5:05 PM
Daylight: 9 hrs 45 mins
Moonrise: 7:34 AM
Moon Transit: 12:12 AM
Moonset: 4:57 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:42 AM - 2:12 PM

Minor Periods

4:27 PM - 5:57 PM
7:04 AM - 8:34 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Sunny
18.4°F
11.4°F
16.4°F
53%
0 in
0%
0%
17.7 mph
0


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: 7:20 AM
Sun Transit: 12:12 AM
Sunset: 5:06 PM
Daylight: 9 hrs 46 mins
Moonrise: 8:07 AM
Moon Transit: 1:01 PM
Moonset: 6:04 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
12:31 AM - 3:01 PM

Minor Periods

5:34 PM - 7:04 PM
7:37 AM - 9:07 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Partly Cloudy
12°F
3.3°F
10.3°F
39%
0 in
0%
0%
21.5 mph
2


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: 7:19 AM
Sun Transit: 12:13 AM
Sunset: 5:07 PM
Daylight: 9 hrs 48 mins
Moonrise: 8:35 AM
Moon Transit: 1:48 PM
Moonset: 7:11 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
1:18 PM - 3:48 PM

Minor Periods

6:41 PM - 8:11 PM
8:05 AM - 9:35 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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