Tracking a Couple of Storm Systems Across the Country

Showers, along with a few strong to severe thunderstorms, are expected from the Great Lakes, New England and southward into the Ohio and Tennessee Valleys. In the wake of this system, a stronger storm is expected to track from the Pacific Northwest, Plains and through the Eastern U.S. this weekend. Strong winds, showers and a larger drop in temperatures are expected this weekend into Monday. Read More >

Coastal Waters Forecast for Northerly Island to Calumet Harbor IL (LMZ742) (Text-Only)
NWS Forecast for: Northerly Island to Calumet Harbor IL (LMZ742)
Issued by: National Weather Service Chicago, IL
Last Update: 908 AM CST Fri Nov 7 2025
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Rest Of Today: Southwest winds 20 to 25 kt becoming west 15 to 20 kt in the late afternoon. Slight chance of rain in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft.

Tonight: Northwest winds 10 to 15 kt becoming north late. Slight chance of rain. Waves 1 to 2 ft building to 2 to 4 ft.

Saturday: Northeast winds 10 to 15 kt. Chance of rain in the morning, then rain in the afternoon. Waves 2 to 4 ft.

Saturday Night: Northeast winds 10 to 20 kt becoming north 20 to 25 kt overnight. Rain in the evening, then rain likely and a chance of snow overnight. Waves 4 to 6 ft occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft.







Zone Forecast: Northerly Island to Calumet Harbor IL (LMZ742)

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