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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSW wind around 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Showers and thunderstorms before 9am, then a chance of showers between 9am and 1pm.  Areas of dense fog before 1pm.  Waves 2 to 3 ft.

      High: 48 °FFalling Temperatures

      SSW 15kt
      2-3ft

    • Tonight

      Tonight:WNW wind 10 to 15 kt becoming SW after midnight. Mostly cloudy, then gradually becoming mostly clear. Waves 1 to 2 ft.

      Low: 38 °F

      SW 15kt
      1-2ft

    • Sunday

      Sunday:SW wind 15 to 20 kt. Sunny. Waves 2 to 3 ft.

      High: 51 °F

      SW 20kt
      2-3ft

    • Sunday Night

      Sunday Night:SSW wind 15 to 20 kt. Mostly clear. Waves 2 to 3 ft.

      Low: 46 °F

      SSW 20kt
      2-3ft

    • Monday

      Monday:SSW wind 10 to 20 kt. Sunny. Waves 1 to 3 ft.

      High: 57 °F

      SSW 20kt
      1-3ft

    • Monday Night

      Monday Night:SW wind around 10 kt becoming NE after midnight. Mostly clear. Waves 1 to 2 ft.

      Low: 43 °F

      N 10kt
      1-2ft

    • Tuesday

      Tuesday:NE wind 10 to 15 kt becoming SSE in the afternoon. Showers likely after noon.   Waves 2 to 3 ft.

      High: 52 °F

      SSE 15kt
      2-3ft

    • Tuesday Night

      Tuesday Night:S wind 15 to 25 kt becoming N in the evening. Rain.   Waves 3 ft building to 9 ft.

      Low: 39 °F

      N 25kt
      Waves Building9ft

    • Wednesday

      Wednesday:NNW wind around 25 kt. Rain likely before noon, then a chance of rain and snow.   Waves around 10 ft.

      High: 43 °F

      NNW 25kt
      10ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:33 am CST Mar 7, 2026
Forecast Valid: 6am CST Mar 7, 2026-6pm CDT Mar 13, 2026

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Detailed Forecast

Today
SSW wind around 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. Showers and thunderstorms before 9am, then a chance of showers between 9am and 1pm. Areas of dense fog before 1pm. Waves 2 to 3 ft.
Tonight
WNW wind 10 to 15 kt becoming SW after midnight. Mostly cloudy, then gradually becoming mostly clear. Waves 1 to 2 ft.
Sunday
SW wind 15 to 20 kt. Sunny. Waves 2 to 3 ft.
Sunday Night
SSW wind 15 to 20 kt. Mostly clear. Waves 2 to 3 ft.
Monday
SSW wind 10 to 20 kt. Sunny. Waves 1 to 3 ft.
Monday Night
SW wind around 10 kt becoming NE after midnight. Mostly clear. Waves 1 to 2 ft.
Tuesday
NE wind 10 to 15 kt becoming SSE in the afternoon. Showers likely after noon. Waves 2 to 3 ft.
Tuesday Night
S wind 15 to 25 kt becoming N in the evening. Rain. Waves 3 ft building to 9 ft.
Wednesday
NNW wind around 25 kt. Rain likely before noon, then a chance of rain and snow. Waves around 10 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 41.91°N 87.32°W
Last Update: 6:33 am CST Mar 7, 2026
Forecast Valid: 6am CST Mar 7, 2026-6pm CDT Mar 13, 2026
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