Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

71.4°F

Measurement Time: Friday, July 24, 2026, 10:20 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

73.9°F
Sunny
Sunny
75.8°F
78.2°F
45%
SE 4.9 mph
5.7 mph
78.1°F
50.5°F
0 in
25%
9 mi
1021 mbar
8.7

Five Day Weather Forecast

Sunny
Fri
H: 83°F
L: 59°F
Partly Cloudy
Sat
H: 80°F
L: 61°F
Sunny
Sun
H: 89°F
L: 70°F
Sunny
Mon
H: 86°F
L: 72°F
Sunny
Tue
H: 83°F
L: 71°F

Air Quality

AQI: 1 - Good
PM2.5: 14 μg/m3
PM10: 14.8 μg/m3
Carbon Monoxide: 131 μg/m3
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 5.3 μg/m3
Ozone: 120 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:57 AM
Sunset: 8:20 PM
Daylight: 14 hrs 44 mins
Moonrise: 5:05 PM
Moon Transit: 9:20 PM
Moonset: 12:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
8:50 PM - 11:20 PM

Minor Periods

4:35 PM - 6:05 PM
12:24 AM - 1:54 AM

Action Rating: 2 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
82.6°F
58.5°F
71.5°F
54%
0 in
2%
0%
7.2 mph
9.1


Air Quality

AQI: 1 - Good
PM2.5: 14.38 μg/m3
PM10: 14.98 μg/m3
Carbon Monoxide: 157.75 μg/m3
Nitrogen Dioxide: 16.6 μg/m3
Sulphur Dioxide: 3.36 μg/m3
Ozone: 93.17 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 12:57 AM
Sunset: 8:20 PM
Daylight: 14 hrs 44 mins
Moonrise: 5:05 PM
Moon Transit: 9:20 PM
Moonset: 12:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:44 AM - 11:14 AM
8:50 PM - 11:20 PM

Minor Periods

4:35 PM - 6:05 PM
12:24 AM - 1:54 AM

Action Rating: 2 out of 5

Saturday, July 25, 2026

Weather Forecast

Partly Cloudy
79.5°F
61.2°F
70.9°F
78%
0 in
13%
0%
12.1 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 6.84 μg/m3
PM10: 7.13 μg/m3
Carbon Monoxide: 161.04 μg/m3
Nitrogen Dioxide: 9.51 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 85.29 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 12:57 AM
Sunset: 8:19 PM
Daylight: 14 hrs 42 mins
Moonrise: 6:01 PM
Moon Transit: 10:12 PM
Moonset: 1:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:34 AM - 12:04 AM
12:00 AM - 12:00 AM

Minor Periods

5:31 PM - 7:01 PM
1:04 AM - 2:34 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
89.2°F
69.7°F
79.1°F
79%
0.02 in
36%
0%
12.1 mph
8.6


Air Quality

AQI: 1 - Good
PM2.5: 8.58 μg/m3
PM10: 8.92 μg/m3
Carbon Monoxide: 164.71 μg/m3
Nitrogen Dioxide: 9.83 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 94.67 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 12:57 AM
Sunset: 8:18 PM
Daylight: 14 hrs 40 mins
Moonrise: 6:51 PM
Moon Transit: 11:03 PM
Moonset: 2:23 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:26 AM - 12:56 AM
12:00 AM - 12:00 AM

Minor Periods

6:21 PM - 7:51 PM
1:53 AM - 3:23 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
86.2°F
71.6°F
77.3°F
71%
0.35 in
69%
0%
8.5 mph
9.7


Air Quality

AQI: 1 - Good
PM2.5: 7.39 μg/m3
PM10: 7.89 μg/m3
Carbon Monoxide: 162.1 μg/m3
Nitrogen Dioxide: 7.33 μg/m3
Sulphur Dioxide: 1.63 μg/m3
Ozone: 94.88 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 12:57 AM
Sunset: 8:17 PM
Daylight: 14 hrs 38 mins
Moonrise: 7:31 PM
Moon Transit: 11:54 PM
Moonset: 3:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

11:17 AM - 1:47 PM
12:00 AM - 12:00 AM

Minor Periods

7:01 PM - 8:31 PM
2:49 AM - 4:19 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
82.9°F
70.6°F
75.7°F
81%
0.07 in
57%
0%
9.2 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 4.48 μg/m3
PM10: 4.56 μg/m3
Carbon Monoxide: 231.38 μg/m3
Nitrogen Dioxide: 9.29 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 56.25 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 12:57 AM
Sunset: 8:15 PM
Daylight: 14 hrs 36 mins
Moonrise: 8:06 PM
Moon Transit: 12:00 AM
Moonset: 4:22 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:07 AM - 2:37 PM

Minor Periods

7:36 PM - 9:06 PM
3:52 AM - 5:22 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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