Water Temperature of the Fox River in McHenry, IL

Current Water Temperature

74.5°F

Measurement Time: Monday, September 15, 2025, 7:00 AM CDT

Temperature Locations

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Fox River

Station Name: FOX RIVER AT MILLER BRIDGE NEAR MCHENRY, IL
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 728 feet / 222 meters

Nearest Address:
Charles J Miller Rd
McHenry, IL 60051
McHenry County

GPS Coordinates: 42.3233333, -88.2516667

Nearby Water Temperatures

Fox River, Burlington, WI (19.9 mi)
Lake Michigan, Waukegan, IL (23.5 mi)
Lake Michigan, Winthrop Harbor, IL (26.8 mi)
Lake Michigan, Wilmette, IL (33.2 mi)
Eagle Spring Lake, Mukwonago, WI (37.8 mi)
Root River, Franklin, WI (39.1 mi)
Lake Michigan, Racine, WI (40.4 mi)
Chicago River, Chicago, IL (44.4 mi)
Lake Michigan, Chicago, IL (46.2 mi)
Chicago Sanitary and Ship Canal, Romeoville, IL (48.2 mi)
Honey Creek, Wauwatosa, WI (51.3 mi)
Lake Michigan, Milwaukee, WI (51.7 mi)
Des Plaines River, Lockport, IL (52.8 mi)
Rock River, Byron, IL (53.2 mi)
Des Plaines River, Joliet, IL (55.1 mi)

Weather for McHenry, Illinois

Current Weather

75.9°F
Sunny
Conditions: Sunny
Humidity: 60%
Feels Like: 78.8°F
Wind: ENE 6.5 mph
Wind Gusts: 12.8 mph
Pressure: 30.18 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0.3

Five Day Weather Forecast

Sunny
Mon
H: 86°F
L: 58°F
Partly Cloudy
Tue
H: 85°F
L: 50°F
Sunny
Wed
H: 84°F
L: 55°F
Sunny
Thu
H: 87°F
L: 59°F
Patchy rain nearby
Fri
H: 77°F
L: 64°F

Air Quality

AQI: 2 - Moderate
PM2.5: 18.5 μg/m3
PM10: 19.06 μg/m3
Carbon Monoxide: 456.95 μg/m3
Nitrogen Dioxide: 25.53 μg/m3
Sulphur Dioxide: 4.44 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:48 AM
Sunset: 7:02 PM
Daylight: 12 hrs 28 mins
Moonrise: 12:28 AM
Moon Transit: 7:46 AM
Moonset: 3:59 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:16 AM - 9:46 AM
8:00 PM - 10:30 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, September 15, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.9°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 19.56 μg/m3
PM10: 20.03 μg/m3
Carbon Monoxide: 420.39 μg/m3
Nitrogen Dioxide: 19.06 μg/m3
Sulphur Dioxide: 8.58 μg/m3
Ozone: 102.6 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:48 AM
Sunset: 7:02 PM
Daylight: 12 hrs 28 mins
Moonrise: 12:28 AM
Moon Transit: 7:46 AM
Moonset: 3:59 PM
Moon Phase: Last Quarter
Moon Illumination: 34.0%

Best Times for Fishing or Hunting

Major Periods

7:16 AM - 9:46 AM
8:00 PM - 10:30 PM

Minor Periods

3:29 PM - 4:59 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, September 16, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 65°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 6.5 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 20.53 μg/m3
PM10: 21.08 μg/m3
Carbon Monoxide: 433.94 μg/m3
Nitrogen Dioxide: 23.69 μg/m3
Sulphur Dioxide: 8.64 μg/m3
Ozone: 96.32 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 12:47 AM
Sunset: 7:00 PM
Daylight: 12 hrs 26 mins
Moonrise: 12:37 AM
Moon Transit: 8:44 AM
Moonset: 4:43 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

8:14 AM - 10:44 AM
8:57 PM - 11:27 PM

Minor Periods

4:13 PM - 5:43 PM
12:07 AM - 1:37 AM

Action Rating: 2 out of 5

Wednesday, September 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 68.4°F
Average Humidity: 76%
Chance of Rain: 0%
Wind: 6 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 25.24 μg/m3
PM10: 25.97 μg/m3
Carbon Monoxide: 439.19 μg/m3
Nitrogen Dioxide: 26.97 μg/m3
Sulphur Dioxide: 7.22 μg/m3
Ozone: 104.44 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:47 AM
Sunset: 6:59 PM
Daylight: 12 hrs 23 mins
Moonrise: 1:49 AM
Moon Transit: 9:39 AM
Moonset: 5:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:09 AM - 11:39 AM

Minor Periods

4:47 PM - 6:17 PM
1:19 AM - 2:49 AM

Action Rating: 2 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 70.9°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 1.4

Air Quality

AQI: 2 - Moderate
PM2.5: 31.09 μg/m3
PM10: 31.52 μg/m3
Carbon Monoxide: 462.43 μg/m3
Nitrogen Dioxide: 23.17 μg/m3
Sulphur Dioxide: 11.46 μg/m3
Ozone: 114.44 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 12:46 AM
Sunset: 6:57 PM
Daylight: 12 hrs 20 mins
Moonrise: 3:02 AM
Moon Transit: 10:29 AM
Moonset: 5:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:59 AM - 12:29 AM

Minor Periods

5:14 PM - 6:44 PM
2:32 AM - 4:02 AM

Action Rating: 3 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 69.1°F
Average Humidity: 69%
Chance of Rain: 78%
Wind: 13.4 mph
UV Index: 0

Air Quality

AQI: 2 - Moderate
PM2.5: 29.07 μg/m3
PM10: 29.4 μg/m3
Carbon Monoxide: 495.52 μg/m3
Nitrogen Dioxide: 26.58 μg/m3
Sulphur Dioxide: 10.86 μg/m3
Ozone: 109.77 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:46 AM
Sunset: 6:55 PM
Daylight: 12 hrs 17 mins
Moonrise: 4:13 AM
Moon Transit: 11:16 AM
Moonset: 6:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:46 AM - 1:16 PM

Minor Periods

5:37 PM - 7:07 PM
3:43 AM - 5:13 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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