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 18 at 8:40PM CDT by NWS Chicago IL

Effective: Sat April 18, 2026, 8:40 PM
Expires: Sun April 19, 2026, 2:45 PM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Dayton affecting La Salle County. Fox River at Montgomery affecting Kane and Kendall Counties. Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. * WHAT...Moderate flooding is occurring and forecasted to continue. * 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 Saturday the stage was 11.2 feet. - Forecast...The river is expected to continue gradually rising into next week. At this point, it is expected to remain just below Major Flood Stage. - 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 almost entirely on observed precipitation as little to no additional precipitation is currently expected over the next 24 to 48 hours. Additional information is available at www.weather.gov. The next statement will be issued by Sunday afternoon.

Flood Warning issued April 18 at 2:20PM CDT until April 25 at 1:00PM CDT by NWS Chicago IL

Effective: Sat April 18, 2026, 2:20 PM
Expires: Sat April 25, 2026, 1:00 PM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until 100 PM CDT Saturday Apr 25. * IMPACTS...Numerous roads, yards, structures, and park land are expected to flood along the Fox River Chain of Lakes. * ADDITIONAL DETAILS... - At 145 PM CDT, River gauges along the Fox River Chain of Lakes indicated slowly rises water levels due to recent rainfall across the area. - Water levels may near major flood stage by the middle of next week and remain above flood stage potentially for several weeks. Impacts from this flood may be similar to those experienced in May of 1973, October of 1986, or June of 2008. - 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

Now is the time to prepare for flooding that hasn't occurred in several years. Residents living along the immediate shorelines of the Fox River Chain of Lakes need to take precautions to protect property including moving valuables to higher ground. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Frost Advisory issued April 19 at 1:52AM CDT until April 19 at 9:00AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 1:52 AM
Expires: Sun April 19, 2026, 12:00 PM

* WHAT...For the Frost Advisory, temperatures as low as 32 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 27 expected, with the coldest conditions across interior northern Illinois. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the Frost Advisory, until 9 AM CDT /10 AM EDT/ this morning. For the Freeze Warning, from midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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 April 19 at 1:52AM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Effective: Sun April 19, 2026, 1:52 AM
Expires: Sun April 19, 2026, 12:00 PM

* WHAT...For the Frost Advisory, temperatures as low as 32 will result in frost formation. For the Freeze Warning, sub-freezing temperatures as low as 27 expected, with the coldest conditions across interior northern Illinois. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the Frost Advisory, until 9 AM CDT /10 AM EDT/ this morning. For the Freeze Warning, from midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Monday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. 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.

Flood Warning issued April 18 at 10:25PM CDT by NWS Milwaukee/Sullivan WI

Effective: Sat April 18, 2026, 10:25 PM
Expires: Sun April 19, 2026, 10:30 AM

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River Lower At Waukesha affecting Waukesha County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. * WHAT...Major flooding is occurring and major flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 15.0 feet, Highway 50 is closed due to floodwaters over the highway. There is widespread flooding in the Town of Wheatland and Village of Salem Lakes. Floodwaters are into the lower levels of some homes in those areas along Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace. * ADDITIONAL DETAILS... - At 10:00 PM CDT Saturday the stage was 15.0 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 PM CDT Saturday was 15.0 feet. - Forecast...The river is expected to rise to a crest of 15.5 feet tomorrow evening. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 15.2 feet on 06/15/2008. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. 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. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued Sunday morning at 1030 AM CDT.