Water Temperature of the Fox River in McHenry, IL

Current Water Temperature

32.0°F

Measurement Time: Tuesday, May 5, 2026, 11:56 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

55.9°F
Sunny
Sunny
52.5°F
64.7°F
26%
WNW 13.9 mph
16.6 mph
64.6°F
28.1°F
0 in
0%
9 mi
1008 mbar
1.5

Five Day Weather Forecast

Sunny
Tue
H: 65°F
L: 47°F
Sunny
Wed
H: 53°F
L: 37°F
Patchy rain nearby
Thu
H: 60°F
L: 36°F
Moderate rain
Fri
H: 57°F
L: 45°F
Moderate rain
Sat
H: 72°F
L: 43°F

Air Quality

AQI: 2 - Moderate
PM2.5: 5.15 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 171.85 μg/m3
Nitrogen Dioxide: 13.35 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:49 AM
Sunset: 7:57 PM
Daylight: 14 hrs 14 mins
Moonrise: 12:25 AM
Moon Transit: 3:36 AM
Moonset: 7:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:06 AM - 5:36 AM
3:46 PM - 6:16 PM

Minor Periods

7:18 AM - 8:48 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Flood Warning issued May 5 at 2:32AM CDT until May 7 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Tue May 5, 2026, 2:32 AM
Expires: Tue May 5, 2026, 2:45 PM

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River Near Lake Koshkonong affecting Jefferson and Rock Counties. Rock River At Afton affecting Winnebago and Rock Counties. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Afton. * WHEN...Until early Thursday afternoon. * IMPACTS...At 9.0 feet, Floodwaters affect property of a home on South Christian Road on the east side of the river in the Afton area. There is minor erosional flood damage to lowland and agricultural land in the Afton and Janesville areas. * ADDITIONAL DETAILS... - At 2:00 AM CDT Tuesday the stage was 9.3 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 2:00 AM CDT Tuesday was 9.5 feet. - Forecast...The river is expected to fall below flood stage Thursday morning and continue falling to 8.1 feet Monday evening. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 9.4 feet on 03/29/2020. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 245 PM CDT.


Flood Warning issued May 5 at 9:55AM CDT until May 8 at 7:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Tue May 5, 2026, 9:55 AM
Expires: Tue May 5, 2026, 10:00 PM

...The Flood Warning is extended for the following rivers in Illinois...Wisconsin... Rock River At Afton affecting Winnebago and Rock Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Rock River at Afton. * WHEN...Until Friday morning. * IMPACTS...At 9.0 feet, Floodwaters affect property of a home on South Christian Road on the east side of the river in the Afton area. There is minor erosional flood damage to lowland and agricultural land in the Afton and Janesville areas. * ADDITIONAL DETAILS... - At 8:00 AM CDT Tuesday the stage was 9.3 feet. - Bankfull stage is 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:00 AM CDT Tuesday was 9.5 feet. - Forecast...The river is expected to fall below flood stage early Friday morning and continue falling to 8.0 feet Tuesday, May 12. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 9.4 feet on 03/29/2020. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued this evening at 1000 PM CDT.


Tuesday, May 5, 2026

Weather Forecast

Sunny
65.3°F
46.6°F
55.5°F
38%
0 in
0%
0%
14.1 mph
5.1


Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 5.14 μg/m3
Carbon Monoxide: 151.77 μg/m3
Nitrogen Dioxide: 5.87 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 75.96 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 12:49 AM
Sunset: 7:57 PM
Daylight: 14 hrs 14 mins
Moonrise: 12:25 AM
Moon Transit: 3:36 AM
Moonset: 7:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

3:06 AM - 5:36 AM
3:46 PM - 6:16 PM

Minor Periods

7:18 AM - 8:48 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, May 6, 2026

Weather Forecast

Sunny
53.2°F
36.8°F
45.1°F
59%
0 in
0%
0%
15 mph
4.5


Air Quality

AQI: 1 - Good
PM2.5: 4.03 μg/m3
PM10: 4.17 μg/m3
Carbon Monoxide: 156.17 μg/m3
Nitrogen Dioxide: 7.75 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 62.44 μg/m3

Astronomical

Sunrise: 5:42 AM
Sun Transit: 12:49 AM
Sunset: 7:58 PM
Daylight: 14 hrs 17 mins
Moonrise: 12:15 AM
Moon Transit: 4:28 AM
Moonset: 8:44 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

3:58 AM - 6:28 AM
4:37 PM - 7:07 PM

Minor Periods

8:14 AM - 9:44 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, May 7, 2026

Weather Forecast

Patchy rain nearby
59.7°F
35.9°F
47.4°F
68%
0.18 in
80%
0%
18.6 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 3.29 μg/m3
PM10: 3.39 μg/m3
Carbon Monoxide: 157.69 μg/m3
Nitrogen Dioxide: 4.67 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 66.64 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 12:49 AM
Sunset: 7:59 PM
Daylight: 14 hrs 19 mins
Moonrise: 12:57 AM
Moon Transit: 5:18 AM
Moonset: 9:45 AM
Moon Phase: Waning Gibbous
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

4:48 AM - 7:18 AM
5:27 PM - 7:57 PM

Minor Periods

9:15 AM - 10:45 AM
12:27 AM - 1:57 AM

Action Rating: 3 out of 5

Friday, May 8, 2026

Weather Forecast

Moderate rain
56.8°F
45.4°F
49.5°F
91%
0.49 in
88%
0%
13.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 8.46 μg/m3
PM10: 9.24 μg/m3
Carbon Monoxide: 160.56 μg/m3
Nitrogen Dioxide: 11.05 μg/m3
Sulphur Dioxide: 2.18 μg/m3
Ozone: 54.76 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:49 AM
Sunset: 8:00 PM
Daylight: 14 hrs 21 mins
Moonrise: 1:31 AM
Moon Transit: 6:06 AM
Moonset: 10:50 AM
Moon Phase: Last Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
6:15 PM - 8:45 PM

Minor Periods

10:20 AM - 11:50 AM
1:01 AM - 2:31 AM

Action Rating: 3 out of 5

Saturday, May 9, 2026

Weather Forecast

Moderate rain
71.7°F
42.9°F
55.9°F
78%
0.45 in
67%
0%
20.6 mph
3


Air Quality

AQI: 2 - Moderate
PM2.5: 18.57 μg/m3
PM10: 19.8 μg/m3
Carbon Monoxide: 233.4 μg/m3
Nitrogen Dioxide: 21.33 μg/m3
Sulphur Dioxide: 4.08 μg/m3
Ozone: 51.54 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:49 AM
Sunset: 8:02 PM
Daylight: 14 hrs 24 mins
Moonrise: 1:59 AM
Moon Transit: 6:53 AM
Moonset: 11:56 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
7:00 PM - 9:30 PM

Minor Periods

11:26 AM - 12:56 AM
1:29 AM - 2:59 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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