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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Today

      Today:NW wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

      High: 48 °F

      E 10kt
      < 1ft

    • Tonight

      Tonight:SE wind 5 to 10 kt becoming SW after midnight. Winds could gust as high as 15 kt. Partly cloudy. Waves 1 ft or less.

      Low: 44 °F

      SW 10kt
      < 1ft

    • Sunday

      Sunday:SW wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers, mainly before 1pm.   Waves around 1 ft.

      High: 66 °F

      SW 20kt
      1ft

    • Sunday Night

      Sunday Night:WSW wind 5 to 10 kt, with gusts as high as 15 kt. Mostly clear. Waves 1 ft or less.

      Low: 48 °F

      WSW 10kt
      < 1ft

    • Monday

      Monday:SSW wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers after 4pm.   Waves 1 ft or less.

      High: 71 °F

      SSW 10kt
      < 1ft

    • Monday Night

      Monday Night:SW wind around 10 kt becoming NNW after midnight. Winds could gust as high as 15 kt. A chance of showers and thunderstorms.   Waves 1 ft or less.

      Low: 48 °F

      SW 10kt
      < 1ft

    • Tuesday

      Tuesday:N wind around 10 kt becoming NE in the afternoon. Winds could gust as high as 15 kt. Showers likely, mainly after 1pm.   Waves around 1 ft.

      High: 56 °F

      NE 10kt
      1ft

    • Tuesday Night

      Tuesday Night:NE wind 5 to 10 kt becoming NNW after midnight. A chance of showers.   Waves around 1 ft.

      Low: 44 °F

      NE 10kt
      1ft

    • Wednesday

      Wednesday:N wind around 10 kt. Mostly cloudy. Waves around 1 ft.

      High: 53 °F

      N 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: 3:30 am CDT May 2, 2026
Forecast Valid: 7am CDT May 2, 2026-6pm CDT May 8, 2026

View Nearby Observations

Detailed Forecast

Today
NW wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.
Tonight
SE wind 5 to 10 kt becoming SW after midnight. Winds could gust as high as 15 kt. Partly cloudy. Waves 1 ft or less.
Sunday
SW wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers, mainly before 1pm. Waves around 1 ft.
Sunday Night
WSW wind 5 to 10 kt, with gusts as high as 15 kt. Mostly clear. Waves 1 ft or less.
Monday
SSW wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers after 4pm. Waves 1 ft or less.
Monday Night
SW wind around 10 kt becoming NNW after midnight. Winds could gust as high as 15 kt. A chance of showers and thunderstorms. Waves 1 ft or less.
Tuesday
N wind around 10 kt becoming NE in the afternoon. Winds could gust as high as 15 kt. Showers likely, mainly after 1pm. Waves around 1 ft.
Tuesday Night
NE wind 5 to 10 kt becoming NNW after midnight. A chance of showers. Waves around 1 ft.
Wednesday
N wind around 10 kt. Mostly cloudy. Waves around 1 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: 41.85°N 87.59°W
Last Update: 3:30 am CDT May 2, 2026
Forecast Valid: 7am CDT May 2, 2026-6pm CDT May 8, 2026
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