Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Coastal Waters Forecast for Wilmette Harbor to Northerly Island IL (LMZ741) (Text-Only)
NWS Forecast for: Wilmette Harbor to Northerly Island IL (LMZ741)
Issued by: National Weather Service Chicago, IL
Last Update: 936 PM CST Sun Nov 9 2025
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Rest Of Tonight: Northwest gales to 35 kt becoming northeast late. Snow showers and snow squalls with a chance of waterspouts and a slight chance of thunderstorms. Waves 8 to 12 ft occasionally to 16 ft.

Monday: North winds to 30 kt becoming northwest 20 to 25 kt late. Snow showers and snow squalls with a chance of waterspouts and a slight chance of thunderstorms in the morning, then slight chance of snow showers in the afternoon. Waves 8 to 11 ft occasionally to 14 ft subsiding to 4 to 6 ft occasionally to 8 ft.

Monday Night: Northwest winds to 30 kt becoming west and diminishing to 15 to 20 kt overnight. Slight chance of snow showers in the evening. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.

Tuesday: Southwest winds to 30 kt. Chance of snow in the morning. Waves 3 to 5 ft.







Zone Forecast: Wilmette Harbor to Northerly Island IL (LMZ741)

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