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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:ENE wind 10 to 15 kt becoming N after midnight. A slight chance of snow showers after 10pm.   Waves 2 ft building to 5 ft.

      Low: 30 °F

      NE 15kt
      Waves Building5ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:ENE wind 5 to 15 kt. A slight chance of snow showers before 9am.   Waves 2 to 4 ft.

      High: 35 °F

      ENE 15kt
      2-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:E wind 5 to 15 kt becoming SSE after midnight. A slight chance of showers after 4am.   Waves 1 to 2 ft.

      Low: 34 °FRising Temperatures

      SSE 15kt
      1-2ft

    • Wednesday

      Wednesday:S wind around 15 kt, with gusts as high as 25 kt. A slight chance of showers before 7am.   Waves around 2 ft.

      High: 62 °F

      S 15kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind 15 to 20 kt. A chance of showers, mainly after 1am.   Waves around 2 ft.

      Low: 52 °FRising Temperatures

      S 20kt
      2ft

    • Thursday

      Thursday:SW wind 10 to 15 kt. A chance of showers, with thunderstorms also possible after 1pm.   Waves around 1 ft.

      High: 67 °F

      SW 15kt
      1ft

    • Thursday Night

      Thursday Night:Variable winds 5 kt or less. Winds could gust as high as 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.   Waves 1 ft or less.

      Low: 45 °FRising Temperatures

      Light Wind
      < 1ft

    • Friday

      Friday:WNW wind around 10 kt becoming N in the afternoon. A chance of showers.   Waves 1 ft or less.

      High: 49 °F

      WNW 10kt
      < 1ft

    • Friday Night

      Friday Night:NNE wind 5 to 10 kt. Partly cloudy. Waves around 1 ft.

      Low: 42 °FRising Temperatures

      NNE 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: 7:51 pm CDT Apr 6, 2026
Forecast Valid: 8pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026

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Detailed Forecast

Tonight
ENE wind 10 to 15 kt becoming N after midnight. A slight chance of snow showers after 10pm. Waves 2 ft building to 5 ft.
Tuesday
ENE wind 5 to 15 kt. A slight chance of snow showers before 9am. Waves 2 to 4 ft.
Tuesday Night
E wind 5 to 15 kt becoming SSE after midnight. A slight chance of showers after 4am. Waves 1 to 2 ft.
Wednesday
S wind around 15 kt, with gusts as high as 25 kt. A slight chance of showers before 7am. Waves around 2 ft.
Wednesday Night
S wind 15 to 20 kt. A chance of showers, mainly after 1am. Waves around 2 ft.
Thursday
SW wind 10 to 15 kt. A chance of showers, with thunderstorms also possible after 1pm. Waves around 1 ft.
Thursday Night
Variable winds 5 kt or less. Winds could gust as high as 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.
Friday
WNW wind around 10 kt becoming N in the afternoon. A chance of showers. Waves 1 ft or less.
Friday Night
NNE wind 5 to 10 kt. Partly cloudy. 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: 7:51 pm CDT Apr 6, 2026
Forecast Valid: 8pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
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