Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

43.5°F

Measurement Time: Tuesday, April 14, 2026, 6:30 AM CDT

Temperature Locations

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Local Points of Interest

Pleasant Prairie, WI

Lake Michigan

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

Lake Michigan, Waukegan, IL (8.5 mi)
Lake Michigan, Racine, WI (16.1 mi)
Fox River, Burlington, WI (24.2 mi)
Lake Michigan, Wilmette, IL (25.4 mi)
Fox River, McHenry, IL (26.8 mi)
Root River, Franklin, WI (27.4 mi)
Lake Michigan, Milwaukee, WI (37.3 mi)
Honey Creek, Wauwatosa, WI (39.9 mi)
Lake Michigan, Lake Michigan, MI (40.3 mi)
Eagle Spring Lake, Mukwonago, WI (41.7 mi)
Lake Michigan, Chicago, IL (42.8 mi)
Chicago River, Chicago, IL (45.4 mi)
Cal-Sag Channel, Blue Island, IL (58.2 mi)
Grand Calumet River, Chicago, IL (59.2 mi)
Indiana Harbor Canal, East Chicago, IN (60.3 mi)

Weather Near Winthrop Harbor, Illinois

Current Weather

64°F

Conditions: Overcast

Feels Like: 64°F

Heat Index: 69°F

Humidity: 81%

Wind: SW 11.2 mph

Wind Gusts: 20.8 mph

Wind Chill: 66°F

Dew Point: 62°F

Precipitation: 0 in

Cloud Cover: 0%

Visibility: 9 mi

Air Pressure: 1010 mbar

UV Index: 1.6

Five Day Weather Forecast

Tue
H: 83°F
L: 54°F

Wed
H: 68°F
L: 59°F

Thu
H: 66°F
L: 45°F

Fri
H: 68°F
L: 43°F

Sat
H: 66°F
L: 37°F

Air Quality

AQI: 1 - Good

PM2.5: 12.95 μg/m3

PM10: 14.25 μg/m3

Carbon Monoxide: 156.85 μg/m3
Nitrogen Dioxide: 11.05 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:51 AM
Sunset: 7:32 PM
Daylight: 13 hrs 20 mins

Moonrise: 4:43 AM
Moon Transit: 10:30 AM
Moonset: 4:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:00 AM - 12:30 AM

Minor Periods

4:01 PM - 5:31 PM
4:13 AM - 5:43 AM

Action Rating: 3 out of 5

Flood Warning issued April 13 at 8:50PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

Effective: Mon April 13, 2026, 8:50 PM
Expires: Tue April 14, 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. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is occurring. * WHAT...Minor flooding is occurring and minor 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 tomorrow 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 PM CDT Monday the stage was 9.5 feet. - Forecast...The river is expected to remain near flood stage Monday night before settling below flood stage on Tuesday. - 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 Tuesday afternoon.

Tuesday, April 14, 2026

Weather Forecast

Conditions: Moderate rain

High Temperature: 82.9°F

Low Temperature: 53.8°F

Average Temperature: 70.2°F

Average Humidity: 79%

Precipitation: 0.71 in

Chance of Rain: 85%

Chance of Snow: 0%

Maximum Wind: 20.6 mph

UV Index: 1.6

Air Quality

AQI: 1 - Good

PM2.5: 8.69 μg/m3

PM10: 9.38 μg/m3

Carbon Monoxide: 169.77 μg/m3
Nitrogen Dioxide: 12.04 μg/m3
Sulphur Dioxide: 2.26 μg/m3
Ozone: 74.92 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 12:51 AM
Sunset: 7:32 PM
Daylight: 13 hrs 20 mins

Moonrise: 4:43 AM
Moon Transit: 10:30 AM
Moonset: 4:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:00 AM - 12:30 AM

Minor Periods

4:01 PM - 5:31 PM
4:13 AM - 5:43 AM

Action Rating: 3 out of 5

Wednesday, April 15, 2026

Weather Forecast

Conditions: Heavy rain

High Temperature: 67.6°F

Low Temperature: 59°F

Average Temperature: 63.2°F

Average Humidity: 94%

Precipitation: 1.68 in

Chance of Rain: 89%

Chance of Snow: 0%

Maximum Wind: 15 mph

UV Index: 1

Air Quality

AQI: 1 - Good

PM2.5: 7.17 μg/m3

PM10: 7.58 μg/m3

Carbon Monoxide: 171.69 μg/m3
Nitrogen Dioxide: 17.13 μg/m3
Sulphur Dioxide: 2.51 μg/m3
Ozone: 58.88 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 12:51 AM
Sunset: 7:33 PM
Daylight: 13 hrs 23 mins

Moonrise: 5:04 AM
Moon Transit: 10:33 AM
Moonset: 5:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:14 PM - 6:44 PM
4:34 AM - 6:04 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Conditions: Moderate rain

High Temperature: 65.7°F

Low Temperature: 45°F

Average Temperature: 59.9°F

Average Humidity: 86%

Precipitation: 0.52 in

Chance of Rain: 81%

Chance of Snow: 0%

Maximum Wind: 14.1 mph

UV Index: 1.6

Air Quality

AQI: 1 - Good

PM2.5: 6.59 μg/m3

PM10: 6.92 μg/m3

Carbon Monoxide: 168.01 μg/m3
Nitrogen Dioxide: 15.61 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 60.28 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 12:50 AM
Sunset: 7:34 PM
Daylight: 13 hrs 26 mins

Moonrise: 5:26 AM
Moon Transit: 12:05 AM
Moonset: 7:01 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:35 AM - 2:05 PM

Minor Periods

6:31 PM - 8:01 PM
4:56 AM - 6:26 AM

Action Rating: 5 out of 5

Friday, April 17, 2026

Weather Forecast

Conditions: Fog

High Temperature: 68.1°F

Low Temperature: 42.6°F

Average Temperature: 54.6°F

Average Humidity: 83%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 0%

Maximum Wind: 17.4 mph

UV Index: 1.4

Air Quality

AQI: 1 - Good

PM2.5: 10.4 μg/m3

PM10: 10.64 μg/m3

Carbon Monoxide: 199.98 μg/m3
Nitrogen Dioxide: 19.93 μg/m3
Sulphur Dioxide: 2.87 μg/m3
Ozone: 46.64 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 12:50 AM
Sunset: 7:35 PM
Daylight: 13 hrs 28 mins

Moonrise: 5:51 AM
Moon Transit: 12:58 AM
Moonset: 8:21 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:19 AM - 2:49 AM
12:28 AM - 2:58 PM

Minor Periods

7:51 PM - 9:21 PM
5:21 AM - 6:51 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Conditions: Moderate rain

High Temperature: 66.4°F

Low Temperature: 37°F

Average Temperature: 56.1°F

Average Humidity: 75%

Precipitation: 0.48 in

Chance of Rain: 83%

Chance of Snow: 0%

Maximum Wind: 27.1 mph

UV Index: 0

Air Quality

AQI: 1 - Good

PM2.5: 9.54 μg/m3

PM10: 10.21 μg/m3

Carbon Monoxide: 194.6 μg/m3
Nitrogen Dioxide: 16.57 μg/m3
Sulphur Dioxide: 5.53 μg/m3
Ozone: 81.54 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 12:50 AM
Sunset: 7:36 PM
Daylight: 13 hrs 31 mins

Moonrise: 6:21 AM
Moon Transit: 1:54 PM
Moonset: 9:43 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

1:14 AM - 3:44 AM
1:24 PM - 3:54 PM

Minor Periods

9:13 PM - 10:43 PM
5:51 AM - 7:21 AM

Action Rating: 4 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

Temperature Locations

Local Points of Interest

Nearby Water Temperatures

Weather Near Winthrop Harbor, Illinois

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Flood Warning issued April 13 at 8:50PM CDT until April 14 at 7:00PM CDT by NWS Chicago IL

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Webcams Near Winthrop Harbor, IL

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