45187 Photo
(Credit: NOAA NDBC)

Winthrop Harbor Buoy, IL

Station ID: 45187

42.491° N / -87.779° W

Last reported: 07/20/2025 09:40 (UTC-06:00) Central Time (Chicago)

Air Temperature

68 ° F

Water Temperature

69 ° F

Wind Speed

9.7 knots

Wind Direction

310°

Wind Gust

13.6 knots

Wave Height

2.3 ft

Dominant Wave Period

4 sec

Mean Wave Direction

355°

Trends

Note: Times are displayed in your timezone. Charts may have different start and end times if buoy sensors report data at different intervals.

Latitude
42° 29' 28" N (42.491)
Longitude
87° 46' 44" W (-87.779)
Observations data source: NOAA NDBC. Weather icons by Erik Flowers