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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:WNW wind 10 to 15 km/h. Mostly clear. Waves 1 m or less.

      Low: 20 °C

      WNW 15km/h
      < 1m

    • Sunday

      Sunday:WNW wind around 10 km/h becoming E in the afternoon. Mostly sunny. Waves 1 m or less.

      High: 28 °C

      WNW 10km/h
      < 1m

    • Sunday Night

      Sunday Night:E wind around 10 km/h becoming SW in the evening. Mostly clear. Waves 1 m or less.

      Low: 21 °C

      E 10km/h
      < 1m

    • Monday

      Monday:S wind 10 to 15 km/h. Sunny. Waves 1 m or less.

      High: 32 °C

      S 15km/h
      < 1m

    • Monday Night

      Monday Night:S wind around 10 km/h. Mostly clear. Waves 1 m or less.

      Low: 23 °C

      S 10km/h
      < 1m

    • Tuesday

      Tuesday:SSE wind 10 to 15 km/h, with gusts as high as 25 km/h. A slight chance of showers and thunderstorms after 1pm.   Waves 1 m or less.

      High: 29 °C

      SSE 15km/h
      < 1m

    • Tuesday Night

      Tuesday Night:SSE wind 10 to 15 km/h becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 1am.   Waves 1 m or less.

      Low: 24 °C

      SSE 15km/h
      < 1m

    • Wednesday

      Wednesday:SSW wind 15 to 20 km/h becoming NNW in the afternoon. Winds could gust as high as 25 km/h. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.   Waves 1 m or less.

      High: 29 °C

      W 20km/h
      < 1m

    • Wednesday Night

      Wednesday Night:NNW wind 15 to 20 km/h becoming SW after midnight. Winds could gust as high as 25 km/h. A chance of showers and thunderstorms.   Waves 1 m or less.

      Low: 22 °C

      NNW 20km/h
      < 1m


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:41 pm CDT Jul 12, 2025
Forecast Valid: 12am CDT Jul 13, 2025-6pm CDT Jul 19, 2025

View Nearby Observations

Detailed Forecast

Overnight
WNW wind 10 to 15 km/h. Mostly clear. Waves 1 m or less.
Sunday
WNW wind around 10 km/h becoming E in the afternoon. Mostly sunny. Waves 1 m or less.
Sunday Night
E wind around 10 km/h becoming SW in the evening. Mostly clear. Waves 1 m or less.
Monday
S wind 10 to 15 km/h. Sunny. Waves 1 m or less.
Monday Night
S wind around 10 km/h. Mostly clear. Waves 1 m or less.
Tuesday
SSE wind 10 to 15 km/h, with gusts as high as 25 km/h. A slight chance of showers and thunderstorms after 1pm. Waves 1 m or less.
Tuesday Night
SSE wind 10 to 15 km/h becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 1am. Waves 1 m or less.
Wednesday
SSW wind 15 to 20 km/h becoming NNW in the afternoon. Winds could gust as high as 25 km/h. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 m or less.
Wednesday Night
NNW wind 15 to 20 km/h becoming SW after midnight. Winds could gust as high as 25 km/h. A chance of showers and thunderstorms. Waves 1 m 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: 7:41 pm CDT Jul 12, 2025
Forecast Valid: 12am CDT Jul 13, 2025-6pm CDT Jul 19, 2025
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