
(Credit: NOAA NDBC)
Winthrop Harbor Buoy, IL
Station ID: 45187
42.491° N / -87.779° W
Last reported: 04/04/2026 22:30 (UTC-06:00) Central Time (Chicago)
Air Temperature
41
41
°
F
Water Temperature
39
39
°
F
Wind Speed
15.6 knots
Wind Direction
60
60°
Wind Gust
23.3 knots
Pressure
29.79 in
Wave Height
1.0 ft
Dominant Wave Period
5 sec
Mean Wave Direction
31
31°
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