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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

      High: 48 °F

      Light Wind
      < 1ft

    • Tonight

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

      Low: 43 °FRising Temperatures

      SW 10kt
      < 1ft

    • Friday

      Friday:SW wind around 10 kt becoming N in the afternoon. Partly sunny. Waves 1 ft or less.

      High: 56 °F

      SW 10kt
      < 1ft

    • Friday Night

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

      Low: 39 °F

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Winds could gust as high as 10 kt. Mostly sunny. Waves 1 ft or less.

      High: 58 °F

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:SSW wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.

      Low: 48 °F

      SSW 10kt
      < 1ft

    • Sunday

      Sunday:WSW wind 10 to 15 kt becoming NNW in the afternoon. Winds could gust as high as 25 kt. A slight chance of showers before 1pm.   Waves 2 ft building to 5 ft.

      High: 57 °F

      NNW 15kt
      Waves Building5ft

    • Sunday Night

      Sunday Night:N wind 15 to 20 kt. Mostly cloudy. Waves 6 to 7 ft. occasionally to 9ft.

      Low: 34 °F

      N 20kt
      6-7ft

    • Monday

      Monday:N wind 5 to 15 kt. Mostly sunny. Waves 6 ft subsiding to 3 ft.

      High: 39 °F

      N 15kt
      6ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:21 pm CDT Mar 19, 2026
Forecast Valid: 1pm CDT Mar 19, 2026-6pm CDT Mar 25, 2026

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Detailed Forecast

This Afternoon
Variable winds 5 kt or less. Sunny. Waves 1 ft or less.
Tonight
N wind 5 to 10 kt becoming S after midnight. Winds could gust as high as 15 kt. Partly cloudy. Waves 1 ft or less.
Friday
SW wind around 10 kt becoming N in the afternoon. Partly sunny. Waves 1 ft or less.
Friday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.
Saturday
Variable winds 5 kt or less. Winds could gust as high as 10 kt. Mostly sunny. Waves 1 ft or less.
Saturday Night
SSW wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.
Sunday
WSW wind 10 to 15 kt becoming NNW in the afternoon. Winds could gust as high as 25 kt. A slight chance of showers before 1pm. Waves 2 ft building to 5 ft.
Sunday Night
N wind 15 to 20 kt. Mostly cloudy. Waves 6 to 7 ft. occasionally to 9ft.
Monday
N wind 5 to 15 kt. Mostly sunny. Waves 6 ft subsiding 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: 41.85°N 87.59°W
Last Update: 1:21 pm CDT Mar 19, 2026
Forecast Valid: 1pm CDT Mar 19, 2026-6pm CDT Mar 25, 2026
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