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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:W wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves around 2 ft.

      High: 32 °F

      W 10kt
      2ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 30 °F

      SW 15kt
      1-2ft

    • Monday

      Monday:WSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves 1 ft or less.

      High: 41 °F

      WSW 15kt
      < 1ft

    • Monday Night

      Monday Night:SW wind 10 to 15 kt. Increasing clouds. Waves 1 ft or less.

      Low: 35 °F

      SW 15kt
      < 1ft

    • Tuesday

      Tuesday:SW wind around 15 kt, with gusts as high as 20 kt. A chance of rain, mainly after noon.   Waves around 1 ft.

      High: 47 °F

      SW 15kt
      1ft

    • Tuesday Night

      Tuesday Night:WSW wind 10 to 15 kt becoming WNW after midnight. A chance of rain, mainly after midnight.   Waves around 1 ft.

      Low: 31 °F

      WSW 15kt
      1ft

    • Wednesday

      Wednesday:WNW wind 15 to 25 kt becoming N in the afternoon. Winds could gust as high as 30 kt. Snow, possibly mixed with rain.   Waves 1 ft building to 8 ft.

      High: 38 °F

      NNW 25kt
      Waves Building8ft

    • Wednesday Night

      Wednesday Night:N wind 20 to 25 kt, with gusts as high as 35 kt. A chance of snow.  Widespread freezing spray after 10pm.  Waves 6 to 8 ft. occasionally to 10ft.

      Low: 20 °F

      N 25kt
      6-8ft

    • Thursday

      Thursday:N wind 10 to 20 kt. A chance of snow.  Widespread freezing spray before 9am.  Waves 5 ft subsiding to 2 ft.

      High: 28 °F

      N 20kt
      5ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:46 pm CST Jan 11, 2026
Forecast Valid: 2pm CST Jan 11, 2026-6pm CST Jan 17, 2026

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Detailed Forecast

This Afternoon
W wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves around 2 ft.
Tonight
SW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 1 to 2 ft.
Monday
WSW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves 1 ft or less.
Monday Night
SW wind 10 to 15 kt. Increasing clouds. Waves 1 ft or less.
Tuesday
SW wind around 15 kt, with gusts as high as 20 kt. A chance of rain, mainly after noon. Waves around 1 ft.
Tuesday Night
WSW wind 10 to 15 kt becoming WNW after midnight. A chance of rain, mainly after midnight. Waves around 1 ft.
Wednesday
WNW wind 15 to 25 kt becoming N in the afternoon. Winds could gust as high as 30 kt. Snow, possibly mixed with rain. Waves 1 ft building to 8 ft.
Wednesday Night
N wind 20 to 25 kt, with gusts as high as 35 kt. A chance of snow. Widespread freezing spray after 10pm. Waves 6 to 8 ft. occasionally to 10ft.
Thursday
N wind 10 to 20 kt. A chance of snow. Widespread freezing spray before 9am. Waves 5 ft subsiding to 2 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: 12:46 pm CST Jan 11, 2026
Forecast Valid: 2pm CST Jan 11, 2026-6pm CST Jan 17, 2026
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