Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

53.4°F

Measurement Time: Friday, October 30, 2026, 1:50 PM CDT

Temperature Locations

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Local Points of Interest

Pleasant Prairie, WI

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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

51.9°F
Patchy rain nearby
Conditions: Patchy rain nearby
Humidity: 73%
Feels Like: 44.6°F
Wind: SW 15.9 mph
Wind Gusts: 25.3 mph
Pressure: 29.68 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Patchy rain nearby
Thu
H: 53°F
L: 45°F
Overcast
Fri
H: 47°F
L: 42°F
Partly Cloudy
Sat
H: 48°F
L: 38°F

Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 3.8 μg/m3
Carbon Monoxide: 141 μg/m3
Nitrogen Dioxide: 5 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 48 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 11:34 AM
Sunset: 4:39 PM
Daylight: 10 hrs 9 mins
Moonrise: 2:41 AM
Moon Transit: 8:47 AM
Moonset: 2:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

8:17 AM - 10:47 AM
8:57 PM - 11:27 PM

Minor Periods

2:13 PM - 3:43 PM
2:11 AM - 3:41 AM

Action Rating: 2 out of 5

Small Craft Advisory issued November 4 at 9:28PM CST until November 5 at 3:00PM CST by NWS Chicago IL

Effective: Wed November 4, 2026, 9:28 PM
Expires: Thu November 5, 2026, 5:30 AM

* WHAT...Southwest winds to 25 kt and significant waves to 4 ft. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...Until 3 PM CST Thursday. * IMPACTS...Conditions will be hazardous to small craft.
Thursday, November 5, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 50°F
Average Humidity: 79%
Chance of Rain: 80%
Wind: 20.1 mph
UV Index: 0.5

Astronomical

Sunrise: 6:30 AM
Sun Transit: 11:34 AM
Sunset: 4:39 PM
Daylight: 10 hrs 9 mins
Moonrise: 2:41 AM
Moon Transit: 8:47 AM
Moonset: 2:43 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

8:17 AM - 10:47 AM
8:57 PM - 11:27 PM

Minor Periods

2:13 PM - 3:43 PM
2:11 AM - 3:41 AM

Action Rating: 2 out of 5

Friday, November 6, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 43.9°F
Average Humidity: 64%
Chance of Rain: 25%
Wind: 16.6 mph
UV Index: 1.4

Astronomical

Sunrise: 6:31 AM
Sun Transit: 11:34 AM
Sunset: 4:38 PM
Daylight: 10 hrs 7 mins
Moonrise: 3:49 AM
Moon Transit: 9:31 AM
Moonset: 3:03 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:01 AM - 11:31 AM

Minor Periods

2:33 PM - 4:03 PM
3:19 AM - 4:49 AM

Action Rating: 2 out of 5

Saturday, November 7, 2026

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 43°F
Average Humidity: 66%
Chance of Rain: 10%
Wind: 11 mph
UV Index: 2.2

Astronomical

Sunrise: 6:33 AM
Sun Transit: 11:34 AM
Sunset: 4:37 PM
Daylight: 10 hrs 4 mins
Moonrise: 4:56 AM
Moon Transit: 10:15 AM
Moonset: 3:26 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:45 AM - 12:15 AM

Minor Periods

2:56 PM - 4:26 PM
4:26 AM - 5:56 AM

Action Rating: 3 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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