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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 50 °F
W 10kt
< 1ft
Tonight
Low: 47 °F
Light Wind
< 1ft
Thursday
High: 66 °F
S 10kt
< 1ft
Thursday Night
Low: 55 °F
S 15kt
1-2ft
Friday
High: 62 °F
S 15kt
1-2ft
Friday Night
Low: 47 °F
NNW 10kt
< 1ft
Saturday
High: 53 °F
NNW 10kt
1-2ft
Saturday Night
Low: 47 °F
N 10kt
1-2ft
Sunday
High: 57 °F
NE 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: 5:32 am CDT Apr 22, 2026
Forecast Valid: 5am CDT Apr 22, 2026-6pm CDT Apr 28, 2026

View Nearby Observations

Detailed Forecast

Today

W wind 5 to 10 kt becoming N in the afternoon. Patchy fog after 8am. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. Patchy dense fog. Waves 1 ft or less.

Thursday

S wind around 10 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

S wind around 15 kt. A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Waves 1 to 2 ft.

Friday

S wind 10 to 15 kt. Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Friday Night

W wind around 10 kt becoming NNW after midnight. A chance of showers before 1am. Waves 1 ft or less.

Saturday

NNW wind around 10 kt. Mostly sunny. Waves 1 to 2 ft.

Saturday Night

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

Sunday

NE wind 5 to 10 kt. Mostly sunny. Waves around 1 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.