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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 40 °F
NE 15kt
5ft
Tonight
Low: 38 °F
E 15kt
4ft
Thursday
High: 61 °F
S 20kt
3-4ft
Thursday Night
Low: 45 °F
S 25kt
3-5ft
Friday
High: 47 °F
WSW 10kt
< 1ft
Friday Night
Low: 42 °F
S 15kt
1-2ft
Saturday
High: 52 °F
SSW 15kt
2ft
Saturday Night
Low: 38 °F
W 20kt
3ft
Sunday
High: 41 °F
WNW 20kt⇓
2-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:33 pm CDT Apr 1, 2026
Forecast Valid: 3pm CDT Apr 1, 2026-6pm CDT Apr 7, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

NE wind around 15 kt, with gusts as high as 25 kt. A slight chance of rain before 5pm. Waves around 5 ft.

Tonight

E wind around 15 kt, with gusts as high as 25 kt. Rain likely, then rain and possibly a thunderstorm after 1am. Waves around 4 ft.

Thursday

ESE wind 15 to 20 kt becoming S in the afternoon. Winds could gust as high as 25 kt. Rain and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and 2pm, then showers and possibly a thunderstorm after 2pm. Waves 3 to 4 ft.

Thursday Night

S wind 15 to 25 kt becoming WSW after midnight. Showers and thunderstorms likely, mainly before 11pm. Waves 3 to 5 ft.

Friday

WSW wind 5 to 10 kt becoming ENE in the afternoon. A chance of showers after 4pm. Waves 1 ft or less.

Friday Night

NE wind 10 to 15 kt becoming S after midnight. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7pm. Waves 1 to 2 ft.

Saturday

S wind around 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Waves around 2 ft.

Saturday Night

W wind around 20 kt. Mostly cloudy. Waves around 3 ft.

Sunday

WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Partly sunny. Waves 2 to 4 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.