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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind around 25 kt, with gusts as high as 35 kt. A chance of showers, mainly after 4pm.  Patchy fog before 4pm.  Waves 8 to 9 ft. occasionally to 12ft.

      High: 37 °F

      N 25kt
      8-9ft

      Gale Warning
      Gale Warning

    • Tonight

      Tonight:N wind 15 to 25 kt, with gusts as high as 30 kt. A slight chance of showers before 7pm.   Waves 9 ft subsiding to 6 ft.

      Low: 31 °F

      N 25kt
      9ftWaves Subsiding

      Gale Warning
      Gale Warning

    • Monday

      Monday:N wind 5 to 15 kt. Mostly cloudy, then gradually becoming sunny. Waves 5 ft subsiding to 2 ft.

      High: 36 °F

      N 15kt
      5ftWaves Subsiding

    • Monday Night

      Monday Night:Variable winds 5 kt or less. Mostly cloudy. Waves 1 to 2 ft.

      Low: 34 °F

      Light Wind
      1-2ft

    • Tuesday

      Tuesday:SSW wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

      High: 53 °F

      SSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 42 °F

      SSE 10kt
      < 1ft

    • Wednesday

      Wednesday:SE wind around 10 kt. A slight chance of showers before 1pm.   Waves around 1 ft.

      High: 53 °F

      SE 10kt
      1ft

    • Wednesday Night

      Wednesday Night:E wind around 10 kt becoming S after midnight. Mostly cloudy. Waves around 1 ft.

      Low: 46 °F

      E 10kt
      1ft

    • Thursday

      Thursday:S wind around 10 kt becoming NNW in the afternoon. A chance of showers.   Waves 1 ft or less.

      High: 62 °F

      S 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: 8:51 am CDT Mar 22, 2026
Forecast Valid: 1pm CDT Mar 22, 2026-6pm CDT Mar 28, 2026

View Nearby Observations

Detailed Forecast

This Afternoon
N wind around 25 kt, with gusts as high as 35 kt. A chance of showers, mainly after 4pm. Patchy fog before 4pm. Waves 8 to 9 ft. occasionally to 12ft.
Tonight
N wind 15 to 25 kt, with gusts as high as 30 kt. A slight chance of showers before 7pm. Waves 9 ft subsiding to 6 ft.
Monday
N wind 5 to 15 kt. Mostly cloudy, then gradually becoming sunny. Waves 5 ft subsiding to 2 ft.
Monday Night
Variable winds 5 kt or less. Mostly cloudy. Waves 1 to 2 ft.
Tuesday
SSW wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.
Tuesday Night
SSE wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.
Wednesday
SE wind around 10 kt. A slight chance of showers before 1pm. Waves around 1 ft.
Wednesday Night
E wind around 10 kt becoming S after midnight. Mostly cloudy. Waves around 1 ft.
Thursday
S wind around 10 kt becoming NNW in the afternoon. A chance of showers. 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: 8:51 am CDT Mar 22, 2026
Forecast Valid: 1pm CDT Mar 22, 2026-6pm CDT Mar 28, 2026
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