Water Temperature of the Fox River in McHenry, IL
Current Water Temperature
Measurement Time: Saturday, April 25, 2026, 6:25 AM CDT
Temperature Locations
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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

Five Day Weather Forecast

Sat
H: 66°F
L: 44°F

Sun
H: 62°F
L: 43°F

Mon
H: 69°F
L: 49°F

Tue
H: 56°F
L: 48°F

Wed
H: 56°F
L: 40°F
Air Quality
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 103 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:46 PM
Daylight: 13 hrs 49 mins
Moon Transit: 8:47 PM
Moonset: 3:13 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Best Times for Fishing or Hunting
Major Periods
8:08 AM - 10:38 AM8:17 PM - 10:47 PM
Minor Periods
1:14 PM - 2:44 PM2:43 AM - 4:13 AM
Action Rating: 2 out of 5
Flood Warning issued April 24 at 2:00PM CDT until April 30 at 1:00PM CDT by NWS Chicago IL
Effective: Fri April 24, 2026, 2:00 PM
Expires: Thu April 30, 2026, 1:00 PM
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until further notice. * IMPACTS...Numerous roads, yards, structures, and areas of park land are flooding along the Fox River Chain of Lakes. Flooding will continue through at least next week. * ADDITIONAL DETAILS... - At 102 PM CDT, River gauges along the Fox River Chain of Lakes indicate that water levels are now beginning to slowly recede following a recent crest in major flood stage. The latest forecast from the Illinois Department of Natural Resources indicates that water levels should continue to slowly recede into next week. - Water levels are expected to remain above flood stage at least through the middle of next week, assuming no additional rainfall occurs. - Some locations that will experience flooding include areas along the Fox River Chain of Lakes, including Nippersink Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie, Channel Lake, and Lake Catherine. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Flood Warning issued April 24 at 8:18PM CDT by NWS Chicago IL
Effective: Fri April 24, 2026, 8:18 PM
Expires: Sat April 25, 2026, 2:30 PM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Russell affecting Lake IL County. Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery...Major flooding is forecast. * WHAT...Major flooding is occurring and is forecasted to continue today. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 12.0 feet, Structures threatened along River Street, Johnson Street, and Maiden Lane in East Dundee. North Harrison Street threatened near Riverside Park in Algonquin. Washington Street threatened in Carpentersville. Water Street, Edwards Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road threatened in Elgin. Low-lying areas of Festival Park are threatened in Elgin. * ADDITIONAL DETAILS... - At 7:30 PM CDT Friday the stage was 12.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Friday was 12.0 feet. - Forecast...The river is expected to rise to a crest of 12.0 feet just after midnight tonight. - Flood stage is 9.5 feet. - Flood History...This crest compares to a previous crest of 11.8 feet on 05/23/2020. - http://www.weather.gov/safety/flood
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. 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. Additional information is available at www.weather.gov. The next statement will be issued by Saturday morning.
Flood Warning issued April 24 at 9:36PM CDT by NWS Milwaukee/Sullivan WI
Effective: Fri April 24, 2026, 9:36 PM
Expires: Sat April 25, 2026, 9:45 AM
...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River At Princeton affecting Green Lake County. Fox River Near Berlin affecting Green Lake County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. ...The Flood Warning is extended for the following rivers in Wisconsin... Crawfish River At Milford affecting Jefferson County. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, Floodwaters are into the lower levels of some homes in the Town of Wheatland and Village of Salem Lakes areas along Riverside Drive and Shorewood Drive. * ADDITIONAL DETAILS... - At 9:00 PM CDT Friday the stage was 13.5 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Friday was 13.8 feet. - Forecast...The river is expected to fall to 11.1 feet Friday, May 01. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 13.4 feet on 09/14/2019. - http://www.weather.gov/safety/flood
Even 6 inches of fast-moving flood water can knock you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued Saturday morning at 945 AM CDT.
Flood Warning issued April 24 at 8:18PM CDT until April 25 at 7:00AM CDT by NWS Chicago IL
Effective: Fri April 24, 2026, 8:18 PM
Expires: Sat April 25, 2026, 7:00 AM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Russell affecting Lake IL County. Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery...Major flooding is forecast. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until tomorrow morning. * IMPACTS...At 7.0 feet, Low-lying wetlands and agricultural land is inundated near the river. * ADDITIONAL DETAILS... - At 7:30 PM CDT Friday the stage was 7.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Friday was 7.4 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 5.8 feet Friday, May 01. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
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. 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. Additional information is available at www.weather.gov. The next statement will be issued by Saturday morning.
Flood Warning issued April 24 at 8:18PM CDT until April 26 at 4:00PM CDT by NWS Chicago IL
Effective: Fri April 24, 2026, 8:18 PM
Expires: Sat April 25, 2026, 2:30 PM
...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kane and Kendall Counties. Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Russell affecting Lake IL County. Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Gurnee affecting Lake IL County. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater, Montgomery...Major flooding is forecast. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until Sunday afternoon. * IMPACTS...At 9.0 feet, Kilbourne Road and Emerald Avenue threatened near Grand Avenue in Gurnee. * ADDITIONAL DETAILS... - At 7:30 PM CDT Friday the stage was 8.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 7:30 PM CDT Friday was 8.8 feet. - Forecast...The river is expected to fall below flood stage late Sunday morning and continue falling to 5.0 feet Friday, May 01. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood
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. 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. Additional information is available at www.weather.gov. The next statement will be issued by Saturday morning.
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.36 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 75 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:46 PM
Daylight: 13 hrs 49 mins
Moon Transit: 8:47 PM
Moonset: 3:13 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%
Best Times for Fishing or Hunting
Major Periods
8:08 AM - 10:38 AM8:17 PM - 10:47 PM
Minor Periods
1:14 PM - 2:44 PM2:43 AM - 4:13 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 82.52 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:47 PM
Daylight: 13 hrs 52 mins
Moon Transit: 9:31 PM
Moonset: 3:37 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%
Best Times for Fishing or Hunting
Major Periods
8:54 AM - 11:24 AM9:01 PM - 11:31 PM
Minor Periods
2:24 PM - 3:54 PM3:07 AM - 4:37 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.09 μg/m3
Sulphur Dioxide: 6.44 μg/m3
Ozone: 93.4 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:48 PM
Daylight: 13 hrs 55 mins
Moon Transit: 10:14 PM
Moonset: 3:58 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%
Best Times for Fishing or Hunting
Major Periods
9:37 AM - 12:07 AM12:00 AM - 12:00 AM
Minor Periods
3:30 PM - 5:00 PM3:28 AM - 4:58 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.75 μg/m3
Sulphur Dioxide: 1.91 μg/m3
Ozone: 88.8 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:49 PM
Daylight: 13 hrs 57 mins
Moon Transit: 10:56 PM
Moonset: 4:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%
Best Times for Fishing or Hunting
Major Periods
10:19 AM - 12:49 AM12:00 AM - 12:00 AM
Minor Periods
4:35 PM - 6:05 PM3:48 AM - 5:18 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 14.93 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 56.46 μg/m3
Astronomical
Sun Transit: 12:50 AM
Sunset: 7:50 PM
Daylight: 14 hrs mins
Moon Transit: 11:38 PM
Moonset: 4:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%
Best Times for Fishing or Hunting
Major Periods
11:01 AM - 1:31 PM12:00 AM - 12:00 AM
Minor Periods
5:41 PM - 7:11 PM4:07 AM - 5:37 AM
Action Rating: 3 out of 5
