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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSW wind 5 to 10 kt becoming N 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm.  Patchy fog between 10am and 4pm.  Waves 1 ft or less building to 3 ft.

      High: 68 °FFalling Temperatures

      ⇑N 20kt
      Waves Building3ft

      Gale Warning
      Gale Warning

    • Tonight

      Tonight:NNE wind around 25 kt, with gusts as high as 35 kt. Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and 1am.   Waves 7 ft building to 10 ft.

      Low: 33 °F

      NNE 25kt
      Waves Building10ft

      Gale Warning
      Gale Warning

    • Friday

      Friday:N wind 10 to 20 kt, with gusts as high as 30 kt. Partly sunny. Waves 8 ft subsiding to 4 ft.

      High: 36 °F

      N 20kt
      8ftWaves Subsiding

    • Friday Night

      Friday Night:NNE wind 5 to 10 kt becoming NW after midnight. Mostly clear. Waves 1 to 3 ft.

      Low: 30 °F

      NW 10kt
      1-3ft

    • Saturday

      Saturday:NW wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves around 1 ft.

      High: 48 °F

      SSW 10kt
      1ft

    • Saturday Night

      Saturday Night:S wind around 10 kt. Mostly cloudy. Waves around 1 ft.

      Low: 40 °F

      S 10kt
      1ft

    • Sunday

      Sunday:S wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves around 1 ft.

      High: 58 °F

      S 10kt
      1ft

    • Sunday Night

      Sunday Night:SSW wind around 10 kt, with gusts as high as 15 kt. Partly cloudy. Waves around 1 ft.

      Low: 48 °F

      SSW 10kt
      1ft

    • Monday

      Monday:SSW wind around 10 kt becoming N in the afternoon. Winds could gust as high as 15 kt. Mostly sunny. Waves 1 ft or less.

      High: 67 °F

      SSW 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: 7:56 am CDT Mar 26, 2026
Forecast Valid: 8am CDT Mar 26, 2026-6pm CDT Apr 1, 2026

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Detailed Forecast

Today
SSW wind 5 to 10 kt becoming N 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. Patchy fog between 10am and 4pm. Waves 1 ft or less building to 3 ft.
Tonight
NNE wind around 25 kt, with gusts as high as 35 kt. Showers and thunderstorms likely before 9pm, then a chance of showers between 9pm and 1am. Waves 7 ft building to 10 ft.
Friday
N wind 10 to 20 kt, with gusts as high as 30 kt. Partly sunny. Waves 8 ft subsiding to 4 ft.
Friday Night
NNE wind 5 to 10 kt becoming NW after midnight. Mostly clear. Waves 1 to 3 ft.
Saturday
NW wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves around 1 ft.
Saturday Night
S wind around 10 kt. Mostly cloudy. Waves around 1 ft.
Sunday
S wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves around 1 ft.
Sunday Night
SSW wind around 10 kt, with gusts as high as 15 kt. Partly cloudy. Waves around 1 ft.
Monday
SSW wind around 10 kt becoming N in the afternoon. Winds could gust as high as 15 kt. Mostly sunny. 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: 7:56 am CDT Mar 26, 2026
Forecast Valid: 8am CDT Mar 26, 2026-6pm CDT Apr 1, 2026
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