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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNW wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 50 °F

      NNW 15kt
      1-2ft

    • Wednesday

      Wednesday:NNE wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Waves 2 to 4 ft.

      High: 50 °F

      NNE 15kt
      2-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:NNE wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Waves around 4 ft.

      Low: 48 °F

      NNE 15kt
      4ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:NNE wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 2 to 3 ft.

      High: 60 °F

      NNE 15kt
      2-3ft

    • Thursday Night

      Thursday Night:NNE wind around 15 kt becoming E after midnight. Mostly cloudy. Waves 3 to 4 ft.

      Low: 51 °F

      NNE 15kt
      3-4ft

    • Friday

      Friday:NE wind around 15 kt. Showers likely, mainly after 1pm.   Waves 2 to 3 ft.

      High: 58 °F

      NE 15kt
      2-3ft

    • Friday Night

      Friday Night:ENE wind 10 to 15 kt. Showers likely and possibly a thunderstorm.   Waves 2 to 3 ft.

      Low: 53 °F

      ENE 15kt
      2-3ft

    • Saturday

      Saturday:NNE wind 5 to 10 kt becoming WNW in the morning. Mostly cloudy. Waves 1 to 2 ft.

      High: 65 °F

      NNE 10kt
      1-2ft

    • Saturday Night

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

      Low: 55 °F

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:57 pm CDT May 19, 2026
Forecast Valid: 7pm CDT May 19, 2026-6pm CDT May 26, 2026

View Nearby Observations

Detailed Forecast

Tonight
NNW wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.
Wednesday
NNE wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Waves 2 to 4 ft.
Wednesday Night
NNE wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Waves around 4 ft.
Thursday
NNE wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 2 to 3 ft.
Thursday Night
NNE wind around 15 kt becoming E after midnight. Mostly cloudy. Waves 3 to 4 ft.
Friday
NE wind around 15 kt. Showers likely, mainly after 1pm. Waves 2 to 3 ft.
Friday Night
ENE wind 10 to 15 kt. Showers likely and possibly a thunderstorm. Waves 2 to 3 ft.
Saturday
NNE wind 5 to 10 kt becoming WNW in the morning. Mostly cloudy. Waves 1 to 2 ft.
Saturday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

*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: 2:57 pm CDT May 19, 2026
Forecast Valid: 7pm CDT May 19, 2026-6pm CDT May 26, 2026
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