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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • This Afternoon

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

      High: 76 °F

      NNW 10kt
      1-2ft

    • Tonight

      Tonight:NNW wind around 10 kt, with gusts as high as 15 kt. A slight chance of showers and thunderstorms before 9pm.  A slight chance of waterspouts after 10pm.  Waves 1 to 2 ft.

      Low: 66 °F

      NNW 10kt
      1-2ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday

      Sunday:NW wind around 10 kt, with gusts as high as 20 kt. A slight chance of waterspouts before 10am. Sunny. Waves around 2 ft.

      High: 74 °F

      NW 10kt
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:N wind 5 to 10 kt becoming W after midnight. Mostly clear. Waves 1 to 2 ft.

      Low: 64 °F

      N 10kt
      1-2ft

    • Monday

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

      High: 73 °F

      Light Wind
      1ft

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

      Low: 66 °F

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

      High: 78 °F

      Light Wind
      < 1ft

    • Tuesday Night

      Tuesday Night:Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

      Low: 67 °F

      Light Wind
      < 1ft

    • Wednesday

      Wednesday:SW wind 5 to 10 kt. A chance of showers and thunderstorms after 1pm.   Waves 1 ft or less.

      High: 82 °F

      SW 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: 12:06 pm CDT Aug 22, 2026
Forecast Valid: 12pm CDT Aug 22, 2026-6pm CDT Aug 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
NNW wind around 10 kt, with gusts as high as 20 kt. A slight chance of showers and thunderstorms after 2pm. Waves 1 to 2 ft.
Tonight
NNW wind around 10 kt, with gusts as high as 15 kt. A slight chance of showers and thunderstorms before 9pm. A slight chance of waterspouts after 10pm. Waves 1 to 2 ft.
Sunday
NW wind around 10 kt, with gusts as high as 20 kt. A slight chance of waterspouts before 10am. Sunny. Waves around 2 ft.
Sunday Night
N wind 5 to 10 kt becoming W after midnight. Mostly clear. Waves 1 to 2 ft.
Monday
Variable winds 5 kt or less. Mostly sunny. Waves around 1 ft.
Monday Night
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Tuesday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Tuesday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Wednesday
SW wind 5 to 10 kt. A chance of showers and thunderstorms after 1pm. 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: 12:06 pm CDT Aug 22, 2026
Forecast Valid: 12pm CDT Aug 22, 2026-6pm CDT Aug 28, 2026
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