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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Thursday
High: 62 °F
SSE 10kt
< 1ft
Thursday Night
Low: 53 °F
S 15kt
2ft
Friday
High: 58 °F
S 15kt
1-2ft
Friday Night
Low: 45 °F
NNW 10kt
< 1ft
Saturday
High: 51 °F
N 10kt
2ft
Saturday Night
Low: 47 °F
NNE 10kt
1-2ft
Sunday
High: 56 °F
NE 10kt
1ft
Sunday Night
Low: 49 °F
ESE 15kt
1-3ft
Monday
High: 61 °F
ESE 20kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:41 am CDT Apr 23, 2026
Forecast Valid: 2am CDT Apr 23, 2026-6pm CDT Apr 29, 2026

View Nearby Observations

Detailed Forecast

Thursday

SSE wind 5 to 10 kt, with gusts as high as 15 kt. Patchy fog before 11am. Waves 1 ft or less.

Thursday Night

S wind around 15 kt. A chance of showers and thunderstorms, mainly after 2am. Waves around 2 ft.

Friday

S wind 10 to 15 kt becoming WSW in the afternoon. Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Friday Night

WNW wind around 10 kt becoming N after midnight. Mostly cloudy. Waves 1 ft or less.

Saturday

N wind around 10 kt. Mostly sunny. Waves around 2 ft.

Saturday Night

NNE wind 5 to 10 kt. Mostly cloudy. Waves 1 to 2 ft.

Sunday

NE wind around 10 kt. Partly sunny. Waves around 1 ft.

Sunday Night

ENE wind around 15 kt becoming ESE after midnight. Winds could gust as high as 20 kt. A chance of showers. Waves 1 to 3 ft.

Monday

ESE wind around 20 kt. Showers likely and possibly a thunderstorm. Waves around 3 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.