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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 44 °F
S 20kt
< 1ft
Wednesday
High: 48 °F
WSW 20kt
< 1ft
Wednesday Night
Low: 41 °F
SW 10kt
< 1ft
Thursday
High: 48 °F
SE 10kt
< 1ft
Thursday Night
Low: 37 °F
WSW 20kt
< 1ft
Friday
High: 42 °F
WSW 20kt
< 1ft
Friday Night
Low: 31 °F
W 20kt
< 1ft
Saturday
High: 37 °F
WNW 15kt
< 1ft
Saturday Night
Low: 30 °F
⇑NNW 25kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:33 pm CST Feb 17, 2026
Forecast Valid: 6pm CST Feb 17, 2026-6pm CST Feb 24, 2026

View Nearby Observations

Detailed Forecast

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-180430- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake-

Tonight

SE wind 15 to 20 kt becoming S after midnight. Rain likely, mainly between midnight and 5am. Waves 1 ft or less.

Wednesday

WSW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of rain before 8am. Waves 1 ft or less.

Wednesday Night

SW wind around 10 kt becoming SSE after midnight. Winds could gust as high as 15 kt. Increasing clouds. Waves 1 ft or less.

Thursday

SE wind around 10 kt. A chance of rain, mainly after noon. Waves 1 ft or less.

Thursday Night

ESE wind 15 to 20 kt becoming WSW after midnight. Rain likely and possibly a thunderstorm. Waves 1 ft or less.

Friday

WSW wind 15 to 20 kt. A chance of rain before noon. Waves 1 ft or less.

Friday Night

W wind 15 to 20 kt. Partly cloudy. Waves 1 ft or less.

Saturday

WNW wind 10 to 15 kt. Partly sunny. Waves 1 ft or less.

Saturday Night

NNW wind 10 to 15 kt increasing to 20 to 25 kt after midnight. A chance of snow. Waves 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.