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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SSW wind 10 to 15 kt, with gusts as high as 20 kt. Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall.   Waves 1 to 2 ft.

      Low: 54 °F

      SSW 15kt
      1-2ft

    • Wednesday

      Wednesday:SSW wind 10 to 15 kt. Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am.  Areas of dense fog before 8am, then Patchy dense fog between 11am and noon.  Waves around 1 ft.

      High: 55 °F

      SSW 15kt
      1ft

    • Wednesday Night

      Wednesday Night:S wind around 10 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight.   Waves 1 to 2 ft.

      Low: 50 °F

      S 10kt
      1-2ft

    • Thursday

      Thursday:SSW wind 10 to 15 kt becoming WNW in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.   Waves 1 to 2 ft.

      High: 58 °F

      SW 15kt
      1-2ft

    • Thursday Night

      Thursday Night:NW wind 5 to 10 kt becoming NE after midnight. A slight chance of showers before 1am.   Waves 1 ft or less.

      Low: 46 °F

      NW 10kt
      < 1ft

    • Friday

      Friday:SE wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

      High: 62 °F

      SE 10kt
      < 1ft

    • Friday Night

      Friday Night:SSE wind 15 to 20 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am.   Waves 1 to 3 ft.

      Low: 52 °F

      SSE 20kt
      1-3ft

    • Saturday

      Saturday:S wind 15 to 20 kt becoming W in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers.   Waves 2 to 3 ft.

      High: 60 °F

      S 20kt
      2-3ft

    • Saturday Night

      Saturday Night:W wind 15 to 25 kt. Partly cloudy. Waves 2 to 4 ft.

      Low: 40 °F

      W 25kt
      2-4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:57 pm CDT Apr 14, 2026
Forecast Valid: 12am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

Overnight
SSW wind 10 to 15 kt, with gusts as high as 20 kt. Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Some of the storms could produce heavy rainfall. Waves 1 to 2 ft.
Wednesday
SSW wind 10 to 15 kt. Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. Areas of dense fog before 8am, then Patchy dense fog between 11am and noon. Waves around 1 ft.
Wednesday Night
S wind around 10 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Waves 1 to 2 ft.
Thursday
SSW wind 10 to 15 kt becoming WNW in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.
Thursday Night
NW wind 5 to 10 kt becoming NE after midnight. A slight chance of showers before 1am. Waves 1 ft or less.
Friday
SE wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.
Friday Night
SSE wind 15 to 20 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Waves 1 to 3 ft.
Saturday
S wind 15 to 20 kt becoming W in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Waves 2 to 3 ft.
Saturday Night
W wind 15 to 25 kt. Partly cloudy. Waves 2 to 4 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: 41.91°N 87.32°W
Last Update: 11:57 pm CDT Apr 14, 2026
Forecast Valid: 12am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
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