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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 55 °F
SSW 15kt
1-2ft
Tonight
Low: 50 °F
S 10kt
1ft
Thursday
High: 57 °F
SSW 10kt
< 1ft
Thursday Night
Low: 46 °F
Light Wind
< 1ft
Friday
High: 63 °F
SSE 10kt
< 1ft
Friday Night
Low: 50 °F
SSE 15kt
1-3ft
Saturday
High: 59 °F
SSW 15kt
2-3ft
Saturday Night
Low: 40 °F
W 20kt
2-4ft
Sunday
High: 47 °F
W 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: 3:41 am CDT Apr 15, 2026
Forecast Valid: 5am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 10 to 15 kt. Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Areas of dense fog between 7am and noon. Waves 1 to 2 ft.

Tonight

S wind around 10 kt. Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Waves around 1 ft.

Thursday

SSW wind around 10 kt becoming WNW in the afternoon. A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 4pm, then showers likely after 4pm. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

Friday

SSE wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Friday Night

SSE wind around 15 kt. A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and possibly a thunderstorm after 1am. Waves 1 to 3 ft.

Saturday

SSW wind around 15 kt becoming W in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms. Waves 2 to 3 ft.

Saturday Night

W wind 15 to 20 kt. A chance of showers. Waves 2 to 4 ft.

Sunday

W wind 10 to 20 kt. Mostly 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.