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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 50 °F
S 15kt
5ft

Gale Warning
Tonight
Low: 25 °F
W 30kt
10ft

Gale Warning
Monday
High: 29 °F
WNW 30kt
11-12ft

Gale Warning
Monday Night
Low: 18 °F
WNW 30kt
10ft

Gale Warning
Tuesday
High: 28 °F
WNW 20kt⇓
6ft
Tuesday Night
Low: 26 °F
S 20kt
1-2ft
Wednesday
High: 42 °F
S 20kt
1-3ft
Wednesday Night
Low: 38 °F
SSW 10kt
< 1ft
Thursday
High: 46 °F
WSW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:54 pm CDT Mar 15, 2026
Forecast Valid: 4pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 15 kt, with gusts as high as 30 kt. Rain likely and possibly a thunderstorm. Waves around 5 ft.

Tonight

SSW wind 20 to 30 kt becoming W in the evening. Rain, possibly mixed with snow, becoming all snow after 4am. Some thunder is also possible. Waves 4 ft building to 10 ft.

Monday

WNW wind around 30 kt, with gusts as high as 35 kt. Snow likely, mainly before 8am. Widespread freezing spray after 8am. Waves 11 to 12 ft. occasionally to 16ft.

Monday Night

WNW wind 20 to 30 kt. A chance of snow, mainly before 10pm. Widespread freezing spray. Waves 10 ft subsiding to 7 ft.

Tuesday

WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Widespread freezing spray before 10am. Partly sunny. Waves 6 ft subsiding to 2 ft.

Tuesday Night

SW wind 10 to 20 kt becoming S after midnight. A chance of snow after 1am. Waves 1 to 2 ft.

Wednesday

S wind 10 to 20 kt. A slight chance of snow before 1pm. Waves 1 to 3 ft.

Wednesday Night

SSW wind around 10 kt. A chance of rain. Waves 1 ft or less.

Thursday

WSW wind 5 to 10 kt becoming N in the afternoon. Mostly sunny. 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.