Water Temperature of the Illinois River in Henry, IL

Current Water Temperature

76.6°F

Measurement Time: Sunday, September 21, 2025, 11:45 AM CDT

Temperature Locations

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Local Points of Interest

Sawmill Lake; Billsbach Lake; Cameron-Billsbach Unit National Wildlife Refuge

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Illinois River

Station Name: ILLINOIS RIVER AT HENRY, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 449 feet / 137 meters

Nearest Address:
782 Cook St
Henry, IL 61537
Marshall County

GPS Coordinates: 41.1072222, -89.3561111

Nearby Water Temperatures

Illinois River, Utica, IL (24.4 mi)
Illinois River, Peoria, IL (35.6 mi)
Illinois River, Marseilles, IL (36.6 mi)
Illinois River, Seneca, IL (40.8 mi)
Illinois River, Seneca, IL (40.8 mi)
Hanson Gravel Pit, Morris, IL (48.8 mi)
Kankakee River, Morris, IL (60.1 mi)
Mason Tazewell Drainage Ditch, Topeka, IL (61.3 mi)
Des Plaines River, Channahon, IL (63.0 mi)
Kankakee River, Wilmington, IL (63.0 mi)
Mississippi River, Le Claire, IA (63.1 mi)
Kankakee River, Custer Park, IL (64.6 mi)
Mississippi River, Camanche, IA (65.7 mi)
Beaver Slough, Clinton, IA (65.9 mi)
North Fork Salt Creek, De Witt, IL (66.7 mi)

Weather for Henry, Illinois

Current Weather

80.8°F
Sunny
Conditions: Sunny
Humidity: 54%
Feels Like: 83°F
Wind: WSW 5.6 mph
Wind Gusts: 9.6 mph
Pressure: 29.85 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 83°F
L: 61°F
Partly Cloudy
Mon
H: 81°F
L: 63°F
Fog
Tue
H: 84°F
L: 67°F
Patchy rain nearby
Wed
H: 73°F
L: 63°F
Patchy rain nearby
Thu
H: 63°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 11.66 μg/m3
PM10: 12.03 μg/m3
Carbon Monoxide: 340.4 μg/m3
Nitrogen Dioxide: 34.23 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 57 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:50 AM
Sunset: 6:56 PM
Daylight: 12 hrs 11 mins
Moonrise: 6:30 AM
Moon Transit: 12:45 AM
Moonset: 6:49 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:15 AM - 2:45 PM

Minor Periods

6:19 PM - 7:49 PM
6:00 AM - 7:30 AM

Action Rating: 3 out of 5

Sunday, September 21, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 71.2°F
Average Humidity: 81%
Chance of Rain: 63%
Wind: 11.4 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 12.42 μg/m3
PM10: 12.88 μg/m3
Carbon Monoxide: 366.6 μg/m3
Nitrogen Dioxide: 12.21 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 95.84 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 12:50 AM
Sunset: 6:56 PM
Daylight: 12 hrs 11 mins
Moonrise: 6:30 AM
Moon Transit: 12:45 AM
Moonset: 6:49 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:15 AM - 2:45 PM

Minor Periods

6:19 PM - 7:49 PM
6:00 AM - 7:30 AM

Action Rating: 3 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 71.3°F
Average Humidity: 84%
Chance of Rain: 0%
Wind: 13.6 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 13.06 μg/m3
PM10: 13.29 μg/m3
Carbon Monoxide: 350.69 μg/m3
Nitrogen Dioxide: 26.38 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:49 AM
Sunset: 6:54 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:33 AM
Moon Transit: 1:25 PM
Moonset: 7:08 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

12:40 AM - 3:10 AM
12:55 AM - 3:25 PM

Minor Periods

6:38 PM - 8:08 PM
7:03 AM - 8:33 AM

Action Rating: 5 out of 5

Tuesday, September 23, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 73.5°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 10.7 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 15.04 μg/m3
PM10: 15.34 μg/m3
Carbon Monoxide: 419.65 μg/m3
Nitrogen Dioxide: 22.26 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 70.04 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:49 AM
Sunset: 6:52 PM
Daylight: 12 hrs 6 mins
Moonrise: 8:36 AM
Moon Transit: 2:06 PM
Moonset: 7:28 PM
Moon Phase: New
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
1:36 PM - 4:06 PM

Minor Periods

6:58 PM - 8:28 PM
8:06 AM - 9:36 AM

Action Rating: 4 out of 5

Wednesday, September 24, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 66°F
Average Humidity: 94%
Chance of Rain: 76%
Wind: 12.3 mph
UV Index: 4

Air Quality

AQI: 1 - Good
PM2.5: 10.45 μg/m3
PM10: 10.6 μg/m3
Carbon Monoxide: 363.41 μg/m3
Nitrogen Dioxide: 15.34 μg/m3
Sulphur Dioxide: 3.69 μg/m3
Ozone: 75.04 μg/m3

Astronomical

Sunrise: 6:48 AM
Sun Transit: 12:49 AM
Sunset: 6:51 PM
Daylight: 12 hrs 3 mins
Moonrise: 9:38 AM
Moon Transit: 2:48 PM
Moonset: 7:51 PM
Moon Phase: New
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
2:18 PM - 4:48 PM

Minor Periods

7:21 PM - 8:51 PM
9:08 AM - 10:38 AM

Action Rating: 3 out of 5

Thursday, September 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 61.9°F
Average Humidity: 96%
Chance of Rain: 89%
Wind: 13.9 mph
UV Index: 4

Air Quality

AQI: 1 - Good
PM2.5: 7.56 μg/m3
PM10: 7.68 μg/m3
Carbon Monoxide: 347.23 μg/m3
Nitrogen Dioxide: 18.73 μg/m3
Sulphur Dioxide: 4.84 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:48 AM
Sunset: 6:49 PM
Daylight: 12 hrs 1 mins
Moonrise: 10:42 AM
Moon Transit: 3:32 PM
Moonset: 8:18 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
3:02 PM - 5:32 PM

Minor Periods

7:48 PM - 9:18 PM
10:12 AM - 11:42 AM

Action Rating: 2 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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