Water Temperature of Lake Michigan Near Winthrop Harbor, IL

Current Water Temperature

51.6°F

Measurement Time: Saturday, May 23, 2026, 10:30 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

60.1°F
Overcast
Overcast
60.1°F
59.7°F
83%
NE 4.3 mph
7 mph
59.6°F
55.1°F
0 in
100%
9 mi
1016 mbar
2.4

Five Day Weather Forecast

Overcast
Sat
H: 66°F
L: 52°F
Patchy rain nearby
Sun
H: 70°F
L: 53°F
Sunny
Mon
H: 73°F
L: 55°F
Sunny
Tue
H: 76°F
L: 61°F
Patchy rain nearby
Wed
H: 73°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 9.85 μg/m3
PM10: 9.85 μg/m3
Carbon Monoxide: 169.85 μg/m3
Nitrogen Dioxide: 9.95 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:47 AM
Sunset: 8:14 PM
Daylight: 14 hrs 53 mins
Moonrise: 12:43 AM
Moon Transit: 7:28 PM
Moonset: 1:40 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
6:58 PM - 9:28 PM

Minor Periods

12:13 AM - 1:43 PM
1:10 AM - 2:40 AM

Action Rating: 2 out of 5

Saturday, May 23, 2026

Weather Forecast

Overcast
66.2°F
52°F
57.6°F
84%
0 in
0%
0%
10.1 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 7.91 μg/m3
PM10: 7.98 μg/m3
Carbon Monoxide: 166.93 μg/m3
Nitrogen Dioxide: 10.38 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 63.16 μg/m3

Astronomical

Sunrise: 5:22 AM
Sun Transit: 12:47 AM
Sunset: 8:14 PM
Daylight: 14 hrs 53 mins
Moonrise: 12:43 AM
Moon Transit: 7:28 PM
Moonset: 1:40 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:54 AM - 9:24 AM
6:58 PM - 9:28 PM

Minor Periods

12:13 AM - 1:43 PM
1:10 AM - 2:40 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
69.9°F
52.8°F
60.7°F
78%
0.07 in
85%
0%
7.2 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 9.49 μg/m3
PM10: 9.73 μg/m3
Carbon Monoxide: 193.89 μg/m3
Nitrogen Dioxide: 15.12 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 68.72 μg/m3

Astronomical

Sunrise: 5:21 AM
Sun Transit: 12:48 AM
Sunset: 8:15 PM
Daylight: 14 hrs 54 mins
Moonrise: 1:51 PM
Moon Transit: 8:12 PM
Moonset: 2:02 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

7:39 AM - 10:09 AM
7:42 PM - 10:12 PM

Minor Periods

1:21 PM - 2:51 PM
1:32 AM - 3:02 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Sunny
72.9°F
55.4°F
64.2°F
60%
0 in
0%
0%
9.6 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 10.78 μg/m3
PM10: 11.48 μg/m3
Carbon Monoxide: 216.69 μg/m3
Nitrogen Dioxide: 22.39 μg/m3
Sulphur Dioxide: 2.8 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:48 AM
Sunset: 8:16 PM
Daylight: 14 hrs 56 mins
Moonrise: 2:57 PM
Moon Transit: 8:54 PM
Moonset: 2:21 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

8:21 AM - 10:51 AM
8:24 PM - 10:54 PM

Minor Periods

2:27 PM - 3:57 PM
1:51 AM - 3:21 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Sunny
76.1°F
60.8°F
68.8°F
67%
0 in
0%
0%
7.2 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 10.57 μg/m3
PM10: 11.22 μg/m3
Carbon Monoxide: 188.95 μg/m3
Nitrogen Dioxide: 18.21 μg/m3
Sulphur Dioxide: 3.36 μg/m3
Ozone: 88.6 μg/m3

Astronomical

Sunrise: 5:20 AM
Sun Transit: 12:48 AM
Sunset: 8:17 PM
Daylight: 14 hrs 58 mins
Moonrise: 4:01 PM
Moon Transit: 9:35 PM
Moonset: 2:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

9:03 AM - 11:33 AM
9:05 PM - 11:35 PM

Minor Periods

3:31 PM - 5:01 PM
2:11 AM - 3:41 AM

Action Rating: 2 out of 5

Wednesday, May 27, 2026

Weather Forecast

Patchy rain nearby
73.2°F
57.3°F
65.8°F
76%
0 in
88%
0%
9.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 10.27 μg/m3
PM10: 10.92 μg/m3
Carbon Monoxide: 199.57 μg/m3
Nitrogen Dioxide: 26.13 μg/m3
Sulphur Dioxide: 3.23 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 12:48 AM
Sunset: 8:18 PM
Daylight: 14 hrs 59 mins
Moonrise: 5:06 PM
Moon Transit: 10:18 PM
Moonset: 3:00 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.7%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

4:36 PM - 6:06 PM
2:30 AM - 4:00 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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