Station Name: Winthrop Harbor Buoy, IL
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet

Nearest Address:
Offshore
Winthrop Harbor, IL 60096
Lake County

GPS Coordinates: 42.491, -87.779

Nearby Water Temperatures

Flood Warning issued April 8 at 4:02PM CDT until April 9 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Wed April 8, 2026, 4:02 PM
Expires: Thu April 9, 2026, 4:15 AM

...The Flood Warning is extended for the following rivers in Wisconsin... Baraboo River Near Baraboo affecting Sauk and Columbia Counties. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Kenosha and Lake Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 11.0 feet, Floodwaters begin to affect 77th St. in the Town of Wheatland. Floodwaters are near some homes along Riverside Dr, Shorewood Dr, and Highway W in the Village of Salem Lakes and Town of Wheatland areas. Fox River Park boat launch starts to flood. * ADDITIONAL DETAILS... - At 3:00 PM CDT Wednesday the stage was 11.2 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Wednesday was 11.7 feet. - Forecast...The river is expected to fall below flood stage tomorrow morning and continue falling to 9.3 feet Wednesday, April 15. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.3 feet on 03/30/2020. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 415 AM CDT.

Flood Warning issued April 8 at 9:56PM CDT until April 9 at 7:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Wed April 8, 2026, 9:56 PM
Expires: Thu April 9, 2026, 7:00 AM

...The Flood Warning is extended for the following rivers in Wisconsin... Baraboo River Near Baraboo affecting Sauk and Columbia Counties. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Kenosha and Lake Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until tomorrow morning. * IMPACTS...At 11.0 feet, Floodwaters begin to affect 77th St. in the Town of Wheatland. Floodwaters are near some homes along Riverside Dr, Shorewood Dr, and Highway W in the Village of Salem Lakes and Town of Wheatland areas. Fox River Park boat launch starts to flood. * ADDITIONAL DETAILS... - At 9:00 PM CDT Wednesday the stage was 11.1 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:00 PM CDT Wednesday was 11.6 feet. - Forecast...The river is expected to fall below flood stage just after midnight tonight and continue falling to 9.2 feet Wednesday, April 15. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.0 feet on 03/11/2020. - http://www.weather.gov/safety/flood

Caution is urged when walking near riverbanks. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued Thursday morning at 700 AM CDT.

Flood Warning issued April 8 at 9:36AM CDT until April 11 at 7:00PM CDT by NWS Chicago IL

Effective: Wed April 8, 2026, 9:36 AM
Expires: Thu April 9, 2026, 3:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting Kane, McHenry and Lake IL Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is forecasted. * WHAT...Minor 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 Saturday evening. * IMPACTS...At 9.5 feet, Fox River Drive threatened in East Dundee. Boathouses threatened along the river in Cary. * ADDITIONAL DETAILS... - At 8:30 AM CDT Wednesday the stage was 9.6 feet. - Forecast...The river is expected to rise crest near 9.7 ft this afternoon. The river will then begin falling and fall below flood stage Saturday afternoon. - 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 late tonight.

Flood Warning issued April 8 at 9:34AM CDT until April 9 at 1:00PM CDT by NWS Chicago IL

Effective: Wed April 8, 2026, 9:34 AM
Expires: Thu April 9, 2026, 3:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. For the Des Plaines River...including Russell, Gurnee, Lincolnshire...Minor flooding is forecasted. * WHAT...Minor flooding is forecasted. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...From late tonight to early tomorrow afternoon. * IMPACTS...At 13.0 feet, Low-lying trails in Wright Woods Forest Preserve are inundated. * ADDITIONAL DETAILS... - At 8:45 AM CDT Wednesday the stage was 12.3 feet. - Forecast...The river is expected to rise to a crest of 12.5 feet just after midnight tonight. It will then fall below flood stage tomorrow morning. - Flood stage is 12.5 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 late tonight.

Flood Warning issued April 8 at 9:34AM CDT until April 10 at 10:00AM CDT by NWS Chicago IL

Effective: Wed April 8, 2026, 9:34 AM
Expires: Thu April 9, 2026, 3:45 AM

...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. For the Des Plaines River...including Russell, Gurnee, Lincolnshire...Minor flooding is forecasted. * WHAT...Minor flooding is occurring and minor flooding 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 late Friday morning. * IMPACTS...At 8.0 feet, Agricultural and park land is inundated near the river. Residential property is threatened near the river. * ADDITIONAL DETAILS... - At 8:30 AM CDT Wednesday the stage was 8.3 feet. - Forecast...The river is expected to continue falling, and fall below flood stage Friday afternoon. - Flood stage is 7.0 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 late tonight.