Water Temperature of the Fox River in McHenry, IL

Current Water Temperature

32.0°F

Measurement Time: Monday, April 13, 2026, 6:33 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

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

71.1°F
Partly cloudy
Partly cloudy
71.1°F
68.4°F
79%
SW 12.1 mph
15.1 mph
68.4°F
65°F
0 in
75%
9 mi
1012 mbar
2.9

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 78°F
L: 60°F
Heavy rain
Tue
H: 77°F
L: 65°F
Heavy rain
Wed
H: 60°F
L: 48°F
Heavy rain
Thu
H: 70°F
L: 47°F
Patchy rain nearby
Fri
H: 73°F
L: 51°F

Air Quality

AQI: 1 - Good
PM2.5: 6.25 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 147.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:53 AM
Sunset: 7:32 PM
Daylight: 13 hrs 17 mins
Moonrise: 4:23 AM
Moon Transit: 9:46 AM
Moonset: 3:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:16 AM - 11:46 AM

Minor Periods

2:52 PM - 4:22 PM
3:53 AM - 5:23 AM

Action Rating: 2 out of 5

Flood Warning issued April 12 at 9:04PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

Effective: Sun April 12, 2026, 9:04 PM
Expires: Mon April 13, 2026, 3:15 PM

...The Flood Warning continues for the following rivers in Indiana... Illinois... Kankakee River at Shelby affecting Lake IN and Newton Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until Tuesday evening. * IMPACTS...At 9.5 feet, Fox River Drive threatened in East Dundee. Boathouses threatened along the river in Cary. * ADDITIONAL DETAILS... - At 8:30 PM CDT Sunday the stage was 9.5 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Sunday was 9.8 feet. - Forecast...The river is expected to rise to a crest of 9.7 feet Monday morning. It will then fall below flood stage early Tuesday afternoon. - Flood stage is 9.5 feet. - http://www.weather.gov/safety/flood

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Monday afternoon.


Monday, April 13, 2026

Weather Forecast

Patchy rain nearby
77.9°F
60.3°F
66.9°F
86%
0.07 in
86%
0%
20.6 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 5.91 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 154.93 μg/m3
Nitrogen Dioxide: 4.26 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 74.6 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 12:53 AM
Sunset: 7:32 PM
Daylight: 13 hrs 17 mins
Moonrise: 4:23 AM
Moon Transit: 9:46 AM
Moonset: 3:22 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:16 AM - 11:46 AM

Minor Periods

2:52 PM - 4:22 PM
3:53 AM - 5:23 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Heavy rain
77°F
65.3°F
70.6°F
90%
1.02 in
84%
0%
20.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 5.23 μg/m3
PM10: 5.58 μg/m3
Carbon Monoxide: 160.05 μg/m3
Nitrogen Dioxide: 4.33 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 79.32 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 12:53 AM
Sunset: 7:33 PM
Daylight: 13 hrs 20 mins
Moonrise: 4:45 AM
Moon Transit: 10:32 AM
Moonset: 4:33 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:02 AM - 12:32 AM

Minor Periods

4:03 PM - 5:33 PM
4:15 AM - 5:45 AM

Action Rating: 3 out of 5

Wednesday, April 15, 2026

Weather Forecast

Heavy rain
60.3°F
48.4°F
57.5°F
98%
8.48 in
88%
0%
16.3 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 6.63 μg/m3
PM10: 6.99 μg/m3
Carbon Monoxide: 156.33 μg/m3
Nitrogen Dioxide: 12.33 μg/m3
Sulphur Dioxide: 2.23 μg/m3
Ozone: 56.8 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:53 AM
Sunset: 7:35 PM
Daylight: 13 hrs 22 mins
Moonrise: 5:06 AM
Moon Transit: 10:33 AM
Moonset: 5:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:16 PM - 6:46 PM
4:36 AM - 6:06 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Heavy rain
70.2°F
46.9°F
56.2°F
87%
0.86 in
86%
0%
16.8 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 4.08 μg/m3
PM10: 4.33 μg/m3
Carbon Monoxide: 148.69 μg/m3
Nitrogen Dioxide: 5.18 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 74.68 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 12:52 AM
Sunset: 7:36 PM
Daylight: 13 hrs 25 mins
Moonrise: 5:28 AM
Moon Transit: 12:07 AM
Moonset: 7:02 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:37 AM - 2:07 PM

Minor Periods

6:32 PM - 8:02 PM
4:58 AM - 6:28 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Patchy rain nearby
73.3°F
51.2°F
62.1°F
79%
0.04 in
59%
0%
16.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 6.57 μg/m3
PM10: 7.11 μg/m3
Carbon Monoxide: 218.66 μg/m3
Nitrogen Dioxide: 13.9 μg/m3
Sulphur Dioxide: 1.97 μg/m3
Ozone: 47.38 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 12:52 AM
Sunset: 7:37 PM
Daylight: 13 hrs 28 mins
Moonrise: 5:53 AM
Moon Transit: 1:00 PM
Moonset: 8:23 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:17 AM - 2:47 AM
12:30 AM - 3:00 PM

Minor Periods

7:53 PM - 9:23 PM
5:23 AM - 6:53 AM

Action Rating: 4 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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