Water Temperature of the Fox River in McHenry, IL

Current Water Temperature

32.0°F

Measurement Time: Monday, August 3, 2026, 6:55 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

75.4°F
Sunny
Sunny
81.3°F
78.6°F
75%
N 2.2 mph
6.7 mph
75.4°F
66.8°F
0 in
21%
6 mi
1016 mbar
6.8

Five Day Weather Forecast

Sunny
Mon
H: 85°F
L: 58°F
Sunny
Tue
H: 81°F
L: 63°F
Light rain shower
Wed
H: 80°F
L: 65°F
Patchy rain nearby
Thu
H: 78°F
L: 64°F
Sunny
Fri
H: 84°F
L: 64°F

Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 130 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:00 PM
Sunset: 8:10 PM
Daylight: 14 hrs 22 mins
Moonrise: 10:22 PM
Moon Transit: 12:00 AM
Moonset: 11:04 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:32 PM - 7:02 PM

Minor Periods

9:52 PM - 11:22 PM
10:34 AM - 12:04 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued August 3 at 2:40AM CDT until August 3 at 9:00AM CDT by NWS Chicago IL

Effective: Mon August 3, 2026, 2:40 AM
Expires: Mon August 3, 2026, 9:00 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 3 to 6 ft expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...Until 9 AM CDT this 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.


Small Craft Advisory issued August 3 at 2:41AM CDT until August 3 at 9:00AM CDT by NWS Chicago IL

Effective: Mon August 3, 2026, 2:41 AM
Expires: Mon August 3, 2026, 9:00 AM

* WHAT...Significant waves to 6 ft occasionally to 8 ft. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, August 3, 2026

Weather Forecast

Sunny
85.3°F
58.1°F
71°F
78%
0 in
9%
0%
6.9 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 7.71 μg/m3
PM10: 7.93 μg/m3
Carbon Monoxide: 138.13 μg/m3
Nitrogen Dioxide: 7.03 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 67.54 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:00 PM
Sunset: 8:10 PM
Daylight: 14 hrs 22 mins
Moonrise: 10:22 PM
Moon Transit: 12:00 AM
Moonset: 11:04 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
4:32 PM - 7:02 PM

Minor Periods

9:52 PM - 11:22 PM
10:34 AM - 12:04 AM

Action Rating: 2 out of 5

Tuesday, August 4, 2026

Weather Forecast

Sunny
81°F
62.6°F
71.9°F
82%
0.01 in
22%
0%
11.4 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 7.4 μg/m3
PM10: 7.51 μg/m3
Carbon Monoxide: 164.58 μg/m3
Nitrogen Dioxide: 10.84 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 65.54 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:00 PM
Sunset: 8:09 PM
Daylight: 14 hrs 20 mins
Moonrise: 10:46 PM
Moon Transit: 5:11 AM
Moonset: 12:15 AM
Moon Phase: Last Quarter
Moon Illumination: 54.6%

Best Times for Fishing or Hunting

Major Periods

4:41 AM - 7:11 AM
5:19 PM - 7:49 PM

Minor Periods

10:16 PM - 11:46 PM
11:45 AM - 1:15 PM

Action Rating: 3 out of 5

Wednesday, August 5, 2026

Weather Forecast

Light rain shower
79.5°F
65.2°F
70.5°F
90%
1.12 in
89%
0%
12.5 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 5.79 μg/m3
PM10: 5.95 μg/m3
Carbon Monoxide: 169.71 μg/m3
Nitrogen Dioxide: 9.07 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 67.92 μg/m3

Astronomical

Sunrise: 5:50 AM
Sun Transit: 1:00 PM
Sunset: 8:08 PM
Daylight: 14 hrs 18 mins
Moonrise: 11:15 PM
Moon Transit: 6:00 AM
Moonset: 1:29 PM
Moon Phase: Last Quarter
Moon Illumination: 43.2%

Best Times for Fishing or Hunting

Major Periods

5:30 AM - 8:00 AM
6:10 PM - 8:40 PM

Minor Periods

12:00 AM - 12:00 AM
12:59 AM - 2:29 PM

Action Rating: 3 out of 5

Thursday, August 6, 2026

Weather Forecast

Patchy rain nearby
78°F
63.7°F
69.9°F
90%
0.11 in
81%
0%
5.6 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 5.1 μg/m3
PM10: 5.19 μg/m3
Carbon Monoxide: 171.38 μg/m3
Nitrogen Dioxide: 9.27 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 67.67 μg/m3

Astronomical

Sunrise: 5:51 AM
Sun Transit: 12:58 AM
Sunset: 8:06 PM
Daylight: 14 hrs 15 mins
Moonrise: 12:15 AM
Moon Transit: 6:53 AM
Moonset: 2:46 PM
Moon Phase: Last Quarter
Moon Illumination: 32.3%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
7:07 PM - 9:37 PM

Minor Periods

2:16 PM - 3:46 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, August 7, 2026

Weather Forecast

Sunny
84.4°F
63.9°F
74°F
81%
0.07 in
57%
0%
6.7 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 11.84 μg/m3
PM10: 11.91 μg/m3
Carbon Monoxide: 272.75 μg/m3
Nitrogen Dioxide: 25.59 μg/m3
Sulphur Dioxide: 1.96 μg/m3
Ozone: 33.88 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 12:58 AM
Sunset: 8:05 PM
Daylight: 14 hrs 13 mins
Moonrise: 12:53 AM
Moon Transit: 7:52 AM
Moonset: 4:02 PM
Moon Phase: Last Quarter
Moon Illumination: 22.2%

Best Times for Fishing or Hunting

Major Periods

7:22 AM - 9:52 AM
8:08 PM - 10:38 PM

Minor Periods

3:32 PM - 5:02 PM
12:00 AM - 12:00 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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