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

43.7°F
Sunny
Sunny
38.6°F
45.2°F
79%
SSE 8.9 mph
16.3 mph
40.6°F
39.5°F
0 in
0%
9 mi
1012 mbar
0.3

Five Day Weather Forecast

Sunny
Tue
H: 69°F
L: 44°F
Partly Cloudy
Wed
H: 69°F
L: 51°F
Overcast
Thu
H: 63°F
L: 46°F
Sunny
Fri
H: 46°F
L: 34°F
Partly Cloudy
Sat
H: 45°F
L: 29°F

Air Quality

AQI: 1 - Good
PM2.5: 11.05 μg/m3
PM10: 11.15 μg/m3
Carbon Monoxide: 244.85 μg/m3
Nitrogen Dioxide: 7.95 μg/m3
Sulphur Dioxide: 4.65 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:16 AM
Sunset: 5:40 PM
Daylight: 10 hrs 48 mins
Moonrise: 7:03 AM
Moon Transit: 12:29 AM
Moonset: 6:06 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:59 AM - 2:29 PM

Minor Periods

5:36 PM - 7:06 PM
6:33 AM - 8:03 AM

Action Rating: 5 out of 5

Special Weather Statement issued February 17 at 5:42AM CST by NWS Quad Cities IA IL

Effective: Tue February 17, 2026, 5:42 AM
Expires: Tue February 17, 2026, 7:00 PM

Warm temperatures combined with dead fuels and southeast winds gusting 25 to 35 mph will produce elevated fire danger conditions. Any fire that develops will spread quickly. Avoid outdoor burning today and follow local official guidance on potential burn bans.


Tuesday, February 17, 2026

Weather Forecast

Sunny
69.3°F
43.7°F
51.8°F
79%
0 in
0%
0%
20.4 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 11.41 μg/m3
PM10: 11.53 μg/m3
Carbon Monoxide: 230.29 μg/m3
Nitrogen Dioxide: 7.41 μg/m3
Sulphur Dioxide: 4.55 μg/m3
Ozone: 63.72 μg/m3

Astronomical

Sunrise: 6:52 AM
Sun Transit: 12:16 AM
Sunset: 5:40 PM
Daylight: 10 hrs 48 mins
Moonrise: 7:03 AM
Moon Transit: 12:29 AM
Moonset: 6:06 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:59 AM - 2:29 PM

Minor Periods

5:36 PM - 7:06 PM
6:33 AM - 8:03 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Partly Cloudy
68.9°F
50.7°F
57.7°F
67%
0 in
0%
0%
19.2 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 7.05 μg/m3
PM10: 7.31 μg/m3
Carbon Monoxide: 177.97 μg/m3
Nitrogen Dioxide: 3.72 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 83.8 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 12:16 AM
Sunset: 5:42 PM
Daylight: 10 hrs 51 mins
Moonrise: 7:26 AM
Moon Transit: 1:15 PM
Moonset: 7:14 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

12:17 AM - 2:47 AM
12:45 AM - 3:15 PM

Minor Periods

6:44 PM - 8:14 PM
6:56 AM - 8:26 AM

Action Rating: 4 out of 5

Thursday, February 19, 2026

Weather Forecast

Overcast
63°F
45.5°F
52.6°F
84%
0 in
0%
0%
21 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 5.52 μg/m3
PM10: 6.22 μg/m3
Carbon Monoxide: 182.65 μg/m3
Nitrogen Dioxide: 8.09 μg/m3
Sulphur Dioxide: 3.09 μg/m3
Ozone: 63.52 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 12:15 AM
Sunset: 5:43 PM
Daylight: 10 hrs 53 mins
Moonrise: 7:49 AM
Moon Transit: 3:07 PM
Moonset: 8:24 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

1:03 AM - 3:33 AM
2:37 PM - 5:07 PM

Minor Periods

7:54 PM - 9:24 PM
7:19 AM - 8:49 AM

Action Rating: 3 out of 5

Friday, February 20, 2026

Weather Forecast

Sunny
46°F
34.4°F
41.1°F
54%
0 in
0%
0%
21.9 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 3.85 μg/m3
Carbon Monoxide: 176.68 μg/m3
Nitrogen Dioxide: 4.79 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 55.64 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:15 AM
Sunset: 5:44 PM
Daylight: 10 hrs 56 mins
Moonrise: 8:13 AM
Moon Transit: 2:47 PM
Moonset: 9:35 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

1:49 AM - 4:19 AM
2:17 PM - 4:47 PM

Minor Periods

9:05 PM - 10:35 PM
7:43 AM - 9:13 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Partly Cloudy
44.8°F
28.7°F
34.1°F
56%
0 in
0%
0%
13.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 4.29 μg/m3
Carbon Monoxide: 220.83 μg/m3
Nitrogen Dioxide: 5.56 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 43.08 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:15 AM
Sunset: 5:45 PM
Daylight: 10 hrs 58 mins
Moonrise: 8:38 AM
Moon Transit: 3:36 PM
Moonset: 10:48 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

2:37 AM - 5:07 AM
3:06 PM - 5:36 PM

Minor Periods

10:18 PM - 11:48 PM
8:08 AM - 9:38 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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