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

Flood Warning issued April 30 at 3:07PM CDT until May 3 at 7:00AM CDT by NWS Chicago IL

Effective: Thu April 30, 2026, 3:07 PM
Expires: Sun May 3, 2026, 7:00 AM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until Sunday. * IMPACTS...Multiple roads, yards, and areas of park land are flooding along the Fox River Chain of Lakes. Flooding is expected to continue until this weekend. * ADDITIONAL DETAILS... - At 304 PM CDT, River gauges along the Fox River Chain of Lakes indicated that water levels continue to slowly fall. - The latest forecast from the Illinois Department of Natural Resources indicates that water levels should fall to near flood stage by this weekend. - 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

Flood Warning issued April 30 at 8:57PM CDT until May 5 at 1:00AM CDT by NWS Chicago IL

Effective: Thu April 30, 2026, 8:57 PM
Expires: Fri May 1, 2026, 3:00 PM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, Lake IL and McHenry Counties. * WHAT...Moderate flooding is occurring and moderate 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 early Tuesday morning. * IMPACTS...At 11.0 feet, Structures threatened near Elgin Avenue and Corey Street south of East Dundee. Lincoln Avenue threatened in West Dundee. Filip Street and Fox River Drive threatened in Algonquin. Fox River Trail threatened south of downtown Elgin. * ADDITIONAL DETAILS... - At 8:30 PM CDT Thursday the stage was 11.0 feet. - Forecast...The river is expected to continue a gradual fall. - 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 Friday afternoon.

Frost Advisory issued May 1 at 3:32AM CDT until May 2 at 8:00AM CDT by NWS Chicago IL

Effective: Fri May 1, 2026, 3:32 AM
Expires: Fri May 1, 2026, 1:45 PM

* WHAT...Temperatures as low as 31 degrees Fahrenheit will result in frost formation. * WHERE...Portions of east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From 1 AM CDT /2 AM EDT/ to 8 AM CDT /9 AM EDT/ Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.

Frost Advisory issued May 1 at 1:42AM CDT until May 2 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri May 1, 2026, 1:42 AM
Expires: Fri May 1, 2026, 9:45 AM

* WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...Kenosha, Milwaukee, and Racine Counties. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.

Freeze Warning issued May 1 at 1:42AM CDT until May 2 at 8:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri May 1, 2026, 1:42 AM
Expires: Fri May 1, 2026, 9:45 AM

* WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Sheboygan, Ozaukee, Walworth, Washington, and Waukesha Counties. * WHEN...From midnight tonight to 8 AM CDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.