Water Temperature of the Illinois River in Henry, IL

Current Water Temperature

80.8°F

Measurement Time: Monday, July 21, 2025, 6:45 PM 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

72.9°F
Overcast
Conditions: Overcast
Humidity: 87%
Feels Like: 77.3°F
Wind: ESE 5.4 mph
Wind Gusts: 11.1 mph
Pressure: 30.03 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Partly Cloudy
Tue
H: 91°F
L: 69°F
Sunny
Wed
H: 98°F
L: 73°F
Partly Cloudy
Thu
H: 98°F
L: 76°F
Moderate rain
Fri
H: 86°F
L: 70°F
Moderate rain
Sat
H: 88°F
L: 70°F

Air Quality

PM2.5: 5.74 μg/m3
PM10: 5.74 μg/m3
Carbon Monoxide: 338.55 μg/m3
Nitrogen Dioxide: 22.02 μg/m3
Sulphur Dioxide: 3.7 μg/m3
Ozone: 37 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:03 PM
Sunset: 8:23 PM
Daylight: 14 hrs 39 mins
Moonrise: 2:52 AM
Moon Transit: 11:04 AM
Moonset: 7:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:34 AM - 1:04 PM

Minor Periods

6:45 PM - 8:15 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Extreme Heat Watch issued July 21 at 1:40PM CDT until July 24 at 7:00PM CDT by NWS Lincoln IL

Effective: Mon July 21, 2025, 1:40 PM
Expires: Tue July 22, 2025, 4:00 AM

* WHAT...Dangerously hot and humid conditions will increase the risk for heat related illness. * WHERE...Portions of central and west central Illinois. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Maximum daily heat indices of 103 to 108 Tuesday, then 105 to 115 Wednesday and Thursday.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Extreme Heat Watch issued July 21 at 2:33PM CDT until July 24 at 7:00PM CDT by NWS Quad Cities IA IL

Effective: Mon July 21, 2025, 2:33 PM
Expires: Mon July 21, 2025, 10:00 PM

* WHAT...Dangerously hot and humid conditions with heat index values up to 110 possible. * WHERE...Portions of north central, northwest, and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Overnight low temperatures Tuesday night/Wednesday morning may not fall much below 75 degrees, which would also maintain heat stress on the human body during the overnight hours.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Extreme Heat Watch issued July 21 at 2:33PM CDT until July 24 at 7:00PM CDT by NWS Quad Cities IA IL

Effective: Mon July 21, 2025, 2:33 PM
Expires: Mon July 21, 2025, 10:00 PM

* WHAT...Dangerously hot and humid conditions with heat index values up to 110 possible. * WHERE...Portions of north central, northwest, and west central Illinois, east central and southeast Iowa, and northeast Missouri. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Overnight low temperatures Tuesday night/Wednesday morning may not fall much below 75 degrees, which would also maintain heat stress on the human body during the overnight hours.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Extreme Heat Watch issued July 21 at 1:40PM CDT until July 24 at 7:00PM CDT by NWS Lincoln IL

Effective: Mon July 21, 2025, 1:40 PM
Expires: Tue July 22, 2025, 4:00 AM

* WHAT...Dangerously hot and humid conditions will increase the risk for heat related illness. * WHERE...Portions of central and west central Illinois. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Maximum daily heat indices of 103 to 108 Tuesday, then 105 to 115 Wednesday and Thursday.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.


Extreme Heat Watch issued July 21 at 1:40PM CDT until July 24 at 7:00PM CDT by NWS Lincoln IL

Effective: Mon July 21, 2025, 1:40 PM
Expires: Tue July 22, 2025, 4:00 AM

* WHAT...Dangerously hot and humid conditions will increase the risk for heat related illness. * WHERE...Portions of central and west central Illinois. * WHEN...From Tuesday afternoon through Thursday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Maximum daily heat indices of 103 to 108 Tuesday, then 105 to 115 Wednesday and Thursday.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Tuesday, July 22, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 79°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 8.3 μg/m3
PM10: 8.47 μg/m3
Carbon Monoxide: 325.9 μg/m3
Nitrogen Dioxide: 15.08 μg/m3
Sulphur Dioxide: 4.2 μg/m3
Ozone: 80.4 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:03 PM
Sunset: 8:23 PM
Daylight: 14 hrs 39 mins
Moonrise: 2:52 AM
Moon Transit: 11:04 AM
Moonset: 7:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:34 AM - 1:04 PM

Minor Periods

6:45 PM - 8:15 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Wednesday, July 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 83.3°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 12.5 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 10.72 μg/m3
PM10: 11.97 μg/m3
Carbon Monoxide: 319.09 μg/m3
Nitrogen Dioxide: 11.9 μg/m3
Sulphur Dioxide: 8.73 μg/m3
Ozone: 104.28 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:03 PM
Sunset: 8:23 PM
Daylight: 14 hrs 38 mins
Moonrise: 3:59 AM
Moon Transit: 12:06 AM
Moonset: 8:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:36 AM - 2:06 PM

Minor Periods

7:36 PM - 9:06 PM
3:29 AM - 4:59 AM

Action Rating: 2 out of 5

Thursday, July 24, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 85.1°F
Average Humidity: 77%
Chance of Rain: 0%
Wind: 11.9 mph
UV Index: 2.5

Air Quality

AQI: 1 - Good
PM2.5: 10.41 μg/m3
PM10: 12.5 μg/m3
Carbon Monoxide: 309.39 μg/m3
Nitrogen Dioxide: 13.19 μg/m3
Sulphur Dioxide: 9.51 μg/m3
Ozone: 113.2 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:04 PM
Sunset: 8:22 PM
Daylight: 14 hrs 36 mins
Moonrise: 5:13 AM
Moon Transit: 1:05 PM
Moonset: 8:45 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:11 AM - 2:41 AM
12:35 AM - 3:05 PM

Minor Periods

8:15 PM - 9:45 PM
4:43 AM - 6:13 AM

Action Rating: 5 out of 5

Friday, July 25, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 78.2°F
Average Humidity: 85%
Chance of Rain: 84%
Wind: 11.2 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 8.4 μg/m3
PM10: 10.55 μg/m3
Carbon Monoxide: 499.5 μg/m3
Nitrogen Dioxide: 36.82 μg/m3
Sulphur Dioxide: 2.83 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:04 PM
Sunset: 8:21 PM
Daylight: 14 hrs 34 mins
Moonrise: 6:28 AM
Moon Transit: 1:58 PM
Moonset: 9:15 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

1:07 AM - 3:37 AM
1:28 PM - 3:58 PM

Minor Periods

8:45 PM - 10:15 PM
5:58 AM - 7:28 AM

Action Rating: 5 out of 5

Saturday, July 26, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 76°F
Average Humidity: 91%
Chance of Rain: 82%
Wind: 11.6 mph
UV Index: 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: 5:48 AM
Sun Transit: 1:04 PM
Sunset: 8:20 PM
Daylight: 14 hrs 32 mins
Moonrise: 7:40 AM
Moon Transit: 2:46 PM
Moonset: 9:40 PM
Moon Phase: New
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

1:58 AM - 4:28 AM
2:16 PM - 4:46 PM

Minor Periods

9:10 PM - 10:40 PM
7:10 AM - 8:40 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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