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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Late Afternoon

      Late Afternoon:ESE wind around 10 kt. Isolated showers.   Waves around 1 ft.

      High: 60 °F

      ESE 10kt
      1ft

    • Tonight

      Tonight:ESE wind 5 to 10 kt. A chance of showers, mainly after 4am.   Waves 1 ft or less.

      Low: 59 °F

      ESE 10kt
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. A chance of showers before 7am, then a slight chance of sprinkles after 7am.   Waves 1 ft or less.

      High: 63 °F

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:S wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 57 °F

      S 10kt
      < 1ft

    • Monday

      Monday:SSE wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers after 1pm.   Waves around 1 ft.

      High: 65 °F

      SSE 15kt
      1ft

    • Monday Night

      Monday Night:S wind 15 to 20 kt. A chance of showers.   Waves around 2 ft.

      Low: 62 °F

      S 20kt
      2ft

    • Tuesday

      Tuesday:S wind around 15 kt, with gusts as high as 25 kt. Showers likely.   Waves around 2 ft.

      High: 71 °F

      S 15kt
      2ft

    • Tuesday Night

      Tuesday Night:S wind 10 to 15 kt, with gusts as high as 20 kt. Showers likely.   Waves 1 to 2 ft.

      Low: 58 °F

      S 15kt
      1-2ft

    • Wednesday

      Wednesday:SSW wind around 10 kt. A chance of showers.   Waves around 1 ft.

      High: 65 °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: 3:51 pm CDT Oct 31, 2026
Forecast Valid: 5pm CDT Oct 31, 2026-6pm CST Nov 7, 2026

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Detailed Forecast

Late Afternoon
ESE wind around 10 kt. Isolated showers. Waves around 1 ft.
Tonight
ESE wind 5 to 10 kt. A chance of showers, mainly after 4am. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. A chance of showers before 7am, then a slight chance of sprinkles after 7am. Waves 1 ft or less.
Sunday Night
S wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.
Monday
SSE wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers after 1pm. Waves around 1 ft.
Monday Night
S wind 15 to 20 kt. A chance of showers. Waves around 2 ft.
Tuesday
S wind around 15 kt, with gusts as high as 25 kt. Showers likely. Waves around 2 ft.
Tuesday Night
S wind 10 to 15 kt, with gusts as high as 20 kt. Showers likely. Waves 1 to 2 ft.
Wednesday
SSW wind around 10 kt. A chance of showers. 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: 3:51 pm CDT Oct 31, 2026
Forecast Valid: 5pm CDT Oct 31, 2026-6pm CST Nov 7, 2026
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