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 12:44PM CDT by NWS Chicago IL

Effective: Sat April 18, 2026, 12:44 PM
Expires: Sun April 19, 2026, 6:45 AM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kendall and Kane Counties. Fox River at Algonquin Lock & Dam tailwater affecting Lake IL, McHenry and Kane 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 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 11:30 AM CDT Saturday the stage was 11.1 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:30 AM CDT Saturday was 11.2 feet. The river climbed overnight due to rainfall yesterday. - Forecast...The river is expected to rise to near 11.5 feet by tomorrow. The river will then slowly climb to a crest near 11.8 feet next Wednesday. - 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

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 morning.

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.

Freeze Watch issued April 18 at 1:29PM CDT until April 20 at 9:00AM CDT by NWS Chicago IL

Effective: Sat April 18, 2026, 1:29 PM
Expires: Sat April 18, 2026, 11:30 PM

* WHAT...For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 28 possible. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the Frost Advisory, from midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Sunday. For the Freeze Watch, from late Sunday night through Monday morning. * 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.

Frost Advisory issued April 18 at 1:29PM CDT until April 19 at 9:00AM CDT by NWS Chicago IL

Effective: Sat April 18, 2026, 1:29 PM
Expires: Sat April 18, 2026, 11:30 PM

* WHAT...For the Frost Advisory, temperatures as low as 33 will result in frost formation. For the Freeze Watch, sub-freezing temperatures as low as 28 possible. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...For the Frost Advisory, from midnight CDT /1 AM EDT/ tonight to 9 AM CDT /10 AM EDT/ Sunday. For the Freeze Watch, from late Sunday night through Monday morning. * 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 12:16PM CDT until April 23 at 7:00AM CDT by NWS Chicago IL

Effective: Sat April 18, 2026, 12:16 PM
Expires: Sun April 19, 2026, 6:30 AM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Russell affecting Lake IL County. ...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until Thursday morning. * IMPACTS...At 16.0 feet, Numerous structures threatened along US-45 (Milwaukee Avenue) between IL-22 (Half Day Road) and Deerfield Road. Access route threatened for numerous residences near US-45 (Milwaukee Avenue) and Deerfield Road. IL-60 (Townline Road) threatened near the river. * ADDITIONAL DETAILS... - At 11:45 AM CDT Saturday the stage was 14.8 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:45 AM CDT Saturday was 14.8 feet. The river has been climbing due to rainfall yesterday evening. - Forecast...The river is expected to rise to a crest near 15.8 feet tomorrow. - Flood stage is 12.5 feet. - Flood History...This crest compares to a previous crest of 15.8 feet on 05/18/2020. - 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 morning.