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

View Nearby Locations     View All Illinois Locations     View Locations Near Me

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

81°F
Partly cloudy
Partly cloudy
81.9°F
89.8°F
58%
NW 16.3 mph
18.8 mph
86.9°F
65.4°F
0 in
50%
9 mi
1005 mbar
6.2

Five Day Weather Forecast

Sunny
Tue
H: 89°F
L: 65°F
Sunny
Wed
H: 71°F
L: 52°F
Sunny
Thu
H: 76°F
L: 57°F
Sunny
Fri
H: 76°F
L: 62°F
Sunny
Sat
H: 78°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 4.4 μg/m3
Carbon Monoxide: 144 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 92 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:57 AM
Sunset: 8:22 PM
Daylight: 14 hrs 50 mins
Moonrise: 1:53 PM
Moon Transit: 6:57 PM
Moonset: 12:30 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
6:27 PM - 8:57 PM

Minor Periods

1:23 PM - 2:53 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued July 21 at 2:33AM CDT until July 22 at 10:00PM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 2:33 AM
Expires: Tue July 21, 2026, 10:45 AM

* WHAT...High wave action and dangerous currents at Lake Michigan beaches expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...From this afternoon through Wednesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.


Beach Hazards Statement issued July 21 at 9:48AM CDT until July 22 at 10:00PM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 9:48 AM
Expires: Tue July 21, 2026, 6:00 PM

* WHAT...High wave action and dangerous currents at Lake Michigan beaches expected. * WHERE...Lake IL, Northern Cook and Central Cook Counties. * WHEN...From this afternoon through Wednesday evening. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.


Small Craft Advisory issued July 21 at 2:29AM CDT until July 22 at 10:00PM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 2:29 AM
Expires: Tue July 21, 2026, 10:30 AM

* WHAT...West winds to 25 kt today becoming north winds to 25 kt this evening with significant waves to 9 ft occasionally to 12 ft on Wednesday expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 10 PM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued July 21 at 9:47AM CDT until July 22 at 10:00PM CDT by NWS Chicago IL

Effective: Tue July 21, 2026, 9:47 AM
Expires: Tue July 21, 2026, 6:00 PM

* WHAT...West winds to 20 kt today becoming north winds to 25 kt this evening with significant waves to 9 ft occasionally to 12 ft on Wednesday expected. * WHERE...Winthrop Harbor to Calumet Harbor IL. * WHEN...Until 10 PM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Tuesday, July 21, 2026

Weather Forecast

Sunny
88.5°F
64.9°F
77.4°F
67%
0 in
8%
0%
17.9 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 3.78 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 147.08 μg/m3
Nitrogen Dioxide: 3.48 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 82.63 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 12:57 AM
Sunset: 8:22 PM
Daylight: 14 hrs 50 mins
Moonrise: 1:53 PM
Moon Transit: 6:57 PM
Moonset: 12:30 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:23 AM - 8:53 AM
6:27 PM - 8:57 PM

Minor Periods

1:23 PM - 2:53 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
70.8°F
52.4°F
62.9°F
59%
0 in
5%
0%
14.8 mph
8.7


Air Quality

AQI: 1 - Good
PM2.5: 4.16 μg/m3
PM10: 4.3 μg/m3
Carbon Monoxide: 126 μg/m3
Nitrogen Dioxide: 3.49 μg/m3
Sulphur Dioxide: 0.51 μg/m3
Ozone: 81.83 μg/m3

Astronomical

Sunrise: 5:33 AM
Sun Transit: 12:57 AM
Sunset: 8:21 PM
Daylight: 14 hrs 48 mins
Moonrise: 2:59 PM
Moon Transit: 7:43 PM
Moonset: 12:53 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

7:08 AM - 9:38 AM
7:13 PM - 9:43 PM

Minor Periods

2:29 PM - 3:59 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
75.6°F
56.9°F
67°F
59%
0 in
4%
0%
6.9 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 6.8 μg/m3
Carbon Monoxide: 143.63 μg/m3
Nitrogen Dioxide: 11.45 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 79.67 μg/m3

Astronomical

Sunrise: 5:34 AM
Sun Transit: 12:57 AM
Sunset: 8:20 PM
Daylight: 14 hrs 46 mins
Moonrise: 4:03 PM
Moon Transit: 8:31 PM
Moonset: 12:21 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:55 AM - 10:25 AM
8:01 PM - 10:31 PM

Minor Periods

3:33 PM - 5:03 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
76.3°F
61.7°F
69.3°F
62%
0 in
4%
0%
10.1 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 6.95 μg/m3
PM10: 7.14 μg/m3
Carbon Monoxide: 150.2 μg/m3
Nitrogen Dioxide: 10.75 μg/m3
Sulphur Dioxide: 1.77 μg/m3
Ozone: 90.92 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

Sunny
78°F
61.4°F
69.9°F
79%
0.01 in
25%
0%
10.5 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 9.6 μg/m3
PM10: 9.8 μg/m3
Carbon Monoxide: 217.5 μg/m3
Nitrogen Dioxide: 21.44 μg/m3
Sulphur Dioxide: 2.76 μg/m3
Ozone: 55.13 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

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.

Webcams Near Winthrop Harbor, IL

Sponsored Content