Water Temperature of the Fox River in McHenry, IL

Current Water Temperature

32.0°F

Measurement Time: Tuesday, July 28, 2026, 9:07 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

83.8°F
Sunny
Sunny
85.3°F
85.8°F
51%
NE 12.5 mph
14.4 mph
83.8°F
64°F
0 in
0%
6 mi
1011 mbar
7.6

Five Day Weather Forecast

Sunny
Tue
H: 84°F
L: 66°F
Sunny
Wed
H: 84°F
L: 60°F
Sunny
Thu
H: 85°F
L: 67°F
Partly Cloudy
Fri
H: 71°F
L: 64°F
Patchy rain nearby
Sat
H: 78°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 6.6 μg/m3
Carbon Monoxide: 129 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:00 PM
Sunset: 8:17 PM
Daylight: 14 hrs 35 mins
Moonrise: 8:07 PM
Moon Transit: 12:00 AM
Moonset: 4:24 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:05 AM - 2:35 PM

Minor Periods

7:37 PM - 9:07 PM
3:54 AM - 5:24 AM

Action Rating: 4 out of 5

Beach Hazards Statement issued July 28 at 1:57AM CDT until July 29 at 10:00AM CDT by NWS Chicago IL

Effective: Tue July 28, 2026, 1:57 AM
Expires: Tue July 28, 2026, 10:00 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 7 to 11 ft expected. * WHERE...In Illinois, Lake, Northern Cook and Central Cook Counties. In Indiana, Lake and Porter Counties. * WHEN...Through Wednesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.


Beach Hazards Statement issued July 28 at 11:02AM CDT until July 29 at 10:00AM CDT by NWS Chicago IL

Effective: Tue July 28, 2026, 11:02 AM
Expires: Tue July 28, 2026, 7:15 PM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 7 to 11 ft expected. * WHERE...In Illinois, Lake, Northern Cook and Central Cook Counties. In Indiana, Lake and Porter Counties. * WHEN...Through Wednesday morning. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.
Tuesday, July 28, 2026

Weather Forecast

Sunny
84.2°F
65.8°F
73.8°F
72%
0 in
7%
0%
13.9 mph
8.3


Air Quality

AQI: 1 - Good
PM2.5: 6.38 μg/m3
PM10: 6.59 μg/m3
Carbon Monoxide: 131.04 μg/m3
Nitrogen Dioxide: 3.53 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 75.33 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 1:00 PM
Sunset: 8:17 PM
Daylight: 14 hrs 35 mins
Moonrise: 8:07 PM
Moon Transit: 12:00 AM
Moonset: 4:24 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:05 AM - 2:35 PM

Minor Periods

7:37 PM - 9:07 PM
3:54 AM - 5:24 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
84°F
59.8°F
71.4°F
60%
0 in
5%
0%
6 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 6.4 μg/m3
Carbon Monoxide: 128.58 μg/m3
Nitrogen Dioxide: 7.11 μg/m3
Sulphur Dioxide: 0.64 μg/m3
Ozone: 65.33 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:00 PM
Sunset: 8:16 PM
Daylight: 14 hrs 33 mins
Moonrise: 8:35 PM
Moon Transit: 12:44 AM
Moonset: 5:29 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:14 AM - 2:44 AM
12:52 AM - 3:22 PM

Minor Periods

8:05 PM - 9:35 PM
4:59 AM - 6:29 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
85.2°F
66.7°F
75.4°F
76%
0.11 in
61%
0%
9.8 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 9.15 μg/m3
PM10: 9.46 μg/m3
Carbon Monoxide: 176.13 μg/m3
Nitrogen Dioxide: 15.3 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 69.29 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:00 PM
Sunset: 8:15 PM
Daylight: 14 hrs 31 mins
Moonrise: 8:59 PM
Moon Transit: 1:31 AM
Moonset: 6:36 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:38 PM - 4:08 PM

Minor Periods

8:29 PM - 9:59 PM
6:06 AM - 7:36 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Partly Cloudy
70.5°F
63.7°F
67.5°F
89%
0.22 in
81%
0%
11.9 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 7.45 μg/m3
PM10: 7.75 μg/m3
Carbon Monoxide: 197.42 μg/m3
Nitrogen Dioxide: 11.09 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 77.79 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:00 PM
Sunset: 8:14 PM
Daylight: 14 hrs 29 mins
Moonrise: 9:20 PM
Moon Transit: 2:15 AM
Moonset: 7:42 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
2:22 PM - 4:52 PM

Minor Periods

8:50 PM - 10:20 PM
7:12 AM - 8:42 AM

Action Rating: 3 out of 5

Saturday, August 1, 2026

Weather Forecast

Patchy rain nearby
78°F
62.2°F
69°F
85%
0.54 in
83%
0%
12.5 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 11.7 μg/m3
PM10: 11.94 μg/m3
Carbon Monoxide: 283.63 μg/m3
Nitrogen Dioxide: 15.03 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 77.5 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:00 PM
Sunset: 8:12 PM
Daylight: 14 hrs 27 mins
Moonrise: 9:40 PM
Moon Transit: 3:00 AM
Moonset: 8:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.9%

Best Times for Fishing or Hunting

Major Periods

2:30 AM - 5:00 AM
3:05 PM - 5:35 PM

Minor Periods

9:10 PM - 10:40 PM
8:19 AM - 9:49 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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