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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSE wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms after 5pm.   Waves 1 to 2 ft.

      High: 63 °F

      SSE 15kt
      1-2ft

    • Tonight

      Tonight:S wind 15 to 20 kt becoming W after midnight. Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Some of the storms could be severe and produce heavy rainfall.  Patchy fog after 9pm.  Waves 2 to 3 ft.

      Low: 44 °F

      S 20kt
      2-3ft

    • Saturday

      Saturday:NW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers before 9am.   Waves 2 to 3 ft.

      High: 50 °F

      NW 15kt
      2-3ft

    • Saturday Night

      Saturday Night:WNW wind 10 to 15 kt. Mostly clear. Waves around 2 ft.

      Low: 41 °F

      WNW 15kt
      2ft

    • Sunday

      Sunday:WSW wind around 10 kt becoming N in the afternoon. A slight chance of showers after 1pm.   Waves around 1 ft.

      High: 47 °F

      WSW 10kt
      1ft

    • Sunday Night

      Sunday Night:N wind around 10 kt. Mostly clear. Waves around 1 ft.

      Low: 38 °F

      N 10kt
      1ft

    • Monday

      Monday:Variable winds 5 kt or less. Sunny. Waves around 1 ft.

      High: 51 °F

      Light Wind
      1ft

    • Monday Night

      Monday Night:ESE wind 10 to 20 kt becoming S after midnight. Partly cloudy. Waves 1 to 3 ft.

      Low: 46 °F

      S 20kt
      1-3ft

    • Tuesday

      Tuesday:SSW wind 15 to 20 kt. Partly sunny. Waves 2 to 3 ft.

      High: 61 °F

      SSW 20kt
      2-3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:26 pm CDT Apr 17, 2026
Forecast Valid: 12pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026

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Detailed Forecast

This Afternoon
SSE wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms after 5pm. Waves 1 to 2 ft.
Tonight
S wind 15 to 20 kt becoming W after midnight. Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers after 4am. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 9pm. Waves 2 to 3 ft.
Saturday
NW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers before 9am. Waves 2 to 3 ft.
Saturday Night
WNW wind 10 to 15 kt. Mostly clear. Waves around 2 ft.
Sunday
WSW wind around 10 kt becoming N in the afternoon. A slight chance of showers after 1pm. Waves around 1 ft.
Sunday Night
N wind around 10 kt. Mostly clear. Waves around 1 ft.
Monday
Variable winds 5 kt or less. Sunny. Waves around 1 ft.
Monday Night
ESE wind 10 to 20 kt becoming S after midnight. Partly cloudy. Waves 1 to 3 ft.
Tuesday
SSW wind 15 to 20 kt. Partly sunny. Waves 2 to 3 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: 12:26 pm CDT Apr 17, 2026
Forecast Valid: 12pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
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