Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

60.6°F

Measurement Time: Monday, June 8, 2026, 10:40 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

82.9°F
Sunny
Sunny
84.5°F
93.7°F
77%
WNW 6.9 mph
9.6 mph
88.9°F
68.2°F
0 in
0%
9 mi
1019 mbar
5.4

Five Day Weather Forecast

Sunny
Wed
H: 100°F
L: 73°F
Sunny
Thu
H: 84°F
L: 72°F
Sunny
Fri
H: 85°F
L: 70°F
Sunny
Sat
H: 89°F
L: 71°F
Sunny
Sun
H: 86°F
L: 67°F

Air Quality

AQI: 1 - Good
PM2.5: 6.4 μg/m3
PM10: 6.8 μg/m3
Carbon Monoxide: 150 μg/m3
Nitrogen Dioxide: 7.1 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 126 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:57 AM
Sunset: 8:27 PM
Daylight: 15 hrs mins
Moonrise: 6:44 AM
Moon Transit: 2:19 PM
Moonset: 9:39 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
1:49 PM - 4:19 PM

Minor Periods

9:09 PM - 10:39 PM
6:14 AM - 7:44 AM

Action Rating: 3 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
99.5°F
72.7°F
83.3°F
69%
0 in
5%
0%
6.9 mph
9.6


Air Quality

AQI: 1 - Good
PM2.5: 7.45 μg/m3
PM10: 7.91 μg/m3
Carbon Monoxide: 155.96 μg/m3
Nitrogen Dioxide: 9.83 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 113.63 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 12:57 AM
Sunset: 8:27 PM
Daylight: 15 hrs mins
Moonrise: 6:44 AM
Moon Transit: 2:19 PM
Moonset: 9:39 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:39 AM - 4:09 AM
1:49 PM - 4:19 PM

Minor Periods

9:09 PM - 10:39 PM
6:14 AM - 7:44 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
84°F
71.9°F
77.2°F
61%
0.08 in
57%
0%
7.6 mph
8.5


Air Quality

AQI: 1 - Good
PM2.5: 9.36 μg/m3
PM10: 9.86 μg/m3
Carbon Monoxide: 156 μg/m3
Nitrogen Dioxide: 10.13 μg/m3
Sulphur Dioxide: 1.04 μg/m3
Ozone: 106.08 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 12:57 AM
Sunset: 8:26 PM
Daylight: 14 hrs 58 mins
Moonrise: 8:04 AM
Moon Transit: 3:12 PM
Moonset: 10:05 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

2:34 AM - 5:04 AM
2:42 PM - 5:12 PM

Minor Periods

9:35 PM - 11:05 PM
7:34 AM - 9:04 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Sunny
85°F
69.9°F
77.4°F
68%
0.01 in
19%
0%
6.3 mph
9.5


Air Quality

AQI: 1 - Good
PM2.5: 8.46 μg/m3
PM10: 8.83 μg/m3
Carbon Monoxide: 159.71 μg/m3
Nitrogen Dioxide: 9.87 μg/m3
Sulphur Dioxide: 1.34 μg/m3
Ozone: 110.33 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 12:57 AM
Sunset: 8:25 PM
Daylight: 14 hrs 57 mins
Moonrise: 9:20 AM
Moon Transit: 4:00 PM
Moonset: 10:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
3:30 PM - 6:00 PM

Minor Periods

9:58 PM - 11:28 PM
8:50 AM - 10:20 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
89.1°F
70.8°F
79.7°F
80%
0.04 in
47%
0%
15.4 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 4.66 μg/m3
PM10: 4.85 μg/m3
Carbon Monoxide: 150.99 μg/m3
Nitrogen Dioxide: 5.58 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 106.08 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 12:57 AM
Sunset: 8:25 PM
Daylight: 14 hrs 55 mins
Moonrise: 10:32 AM
Moon Transit: 4:46 PM
Moonset: 10:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
4:16 PM - 6:46 PM

Minor Periods

10:19 PM - 11:49 PM
10:02 AM - 11:32 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
85.6°F
67.2°F
76.2°F
74%
0 in
17%
0%
9.4 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.64 μg/m3
PM10: 3.7 μg/m3
Carbon Monoxide: 172.13 μg/m3
Nitrogen Dioxide: 1.98 μg/m3
Sulphur Dioxide: 0.39 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 12:57 AM
Sunset: 8:24 PM
Daylight: 14 hrs 53 mins
Moonrise: 11:40 AM
Moon Transit: 5:29 PM
Moonset: 11:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

4:56 AM - 7:26 AM
4:59 PM - 7:29 PM

Minor Periods

12:00 AM - 12:00 AM
11:10 AM - 12:40 AM

Action Rating: 2 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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