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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 27 °F
NNW 25kt⇓
10ft

Gale Warning
Tonight
Low: 25 °F
SSW 15kt
6ft
Tuesday
High: 41 °F
S 25kt
5ft
Tuesday Night
Low: 27 °F
W 20kt
3-4ft
Wednesday
High: 34 °F
WNW 20kt⇓
4ft
Wednesday Night
Low: 29 °F
E 10kt
< 1ft
Thursday
High: 36 °F
E 10kt
1ft
Thursday Night
Low: 31 °F
SW 15kt
1ft
Friday
High: 46 °F
SSW 15kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:22 am CST Feb 23, 2026
Forecast Valid: 6am CST Feb 23, 2026-6pm CST Mar 1, 2026

View Nearby Observations

Detailed Forecast

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876- 878-231615- 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-

Today

NNW wind 20 to 25 kt decreasing to 15 to 20 kt in the afternoon. Winds could gust as high as 35 kt. Snow likely, mainly before 11am. Widespread freezing spray before 1pm. Waves 10 ft subsiding to 7 ft.

Tonight

NNW wind 5 to 15 kt becoming SSW after midnight. Mostly cloudy. Waves 6 ft subsiding to 2 ft.

Tuesday

S wind 15 to 25 kt, with gusts as high as 30 kt. A slight chance of snow after noon. Waves 2 ft building to 5 ft.

Tuesday Night

SW wind around 20 kt becoming WNW after midnight. Mostly cloudy. Waves 3 to 4 ft.

Wednesday

WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Mostly sunny. Waves 4 ft subsiding to 1 ft.

Wednesday Night

WNW wind around 10 kt becoming E after midnight. A chance of snow, mainly after midnight. Waves 1 ft or less.

Thursday

E wind around 10 kt becoming N in the afternoon. A chance of snow, mainly before noon. Waves around 1 ft.

Thursday Night

NNW wind 10 to 15 kt becoming SW after midnight. Partly cloudy. Waves around 1 ft.

Friday

SSW wind around 15 kt. Sunny. Waves 1 to 2 ft.

*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.