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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 54 °F
SSW 15kt
1-2ft
Wednesday
High: 55 °F
SSW 15kt
1ft
Wednesday Night
Low: 50 °F
S 10kt
1-2ft
Thursday
High: 58 °F
SW 15kt
1-2ft
Thursday Night
Low: 46 °F
NW 10kt
< 1ft
Friday
High: 62 °F
SE 10kt
< 1ft
Friday Night
Low: 52 °F
SSE 20kt
1-3ft
Saturday
High: 60 °F
S 20kt
2-3ft
Saturday Night
Low: 40 °F
W 25kt
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: 11:57 pm CDT Apr 14, 2026
Forecast Valid: 12am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

Overnight

SSW wind 10 to 15 kt, with gusts as high as 20 kt. Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall. Waves 1 to 2 ft.

Wednesday

SSW wind 10 to 15 kt. Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. Areas of dense fog before 8am, then Patchy dense fog between 11am and noon. Waves around 1 ft.

Wednesday Night

S wind around 10 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Waves 1 to 2 ft.

Thursday

SSW wind 10 to 15 kt becoming WNW in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Thursday Night

NW wind 5 to 10 kt becoming NE after midnight. A slight chance of showers before 1am. Waves 1 ft or less.

Friday

SE wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Friday Night

SSE wind 15 to 20 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Waves 1 to 3 ft.

Saturday

S wind 15 to 20 kt becoming W in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Waves 2 to 3 ft.

Saturday Night

W wind 15 to 25 kt. Partly cloudy. 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.