Hazardous Weather Conditions

For More Weather Information:

Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]
    • Today

      Today:W wind 5 to 10 kt becoming N in the afternoon. Patchy fog after 8am.  Waves 1 ft or less.

      High: 50 °FFalling Temperatures

      W 10kt
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Patchy dense fog.  Waves 1 ft or less.

      Low: 47 °FRising Temperatures

      Light Wind
      < 1ft

    • Thursday

      Thursday:S wind around 10 kt. Mostly sunny. Waves 1 ft or less.

      High: 66 °F

      S 10kt
      < 1ft

    • Thursday Night

      Thursday Night:S wind around 15 kt. A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am.   Waves 1 to 2 ft.

      Low: 55 °F

      S 15kt
      1-2ft

    • Friday

      Friday:S wind 10 to 15 kt. Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm.   Waves 1 to 2 ft.

      High: 62 °F

      S 15kt
      1-2ft

    • Friday Night

      Friday Night:W wind around 10 kt becoming NNW after midnight. A chance of showers before 1am.   Waves 1 ft or less.

      Low: 47 °F

      NNW 10kt
      < 1ft

    • Saturday

      Saturday:NNW wind around 10 kt. Mostly sunny. Waves 1 to 2 ft.

      High: 53 °F

      NNW 10kt
      1-2ft

    • Saturday Night

      Saturday Night:N wind 5 to 10 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 47 °F

      N 10kt
      1-2ft

    • Sunday

      Sunday:NE wind 5 to 10 kt. Mostly sunny. Waves around 1 ft.

      High: 57 °F

      NE 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: 5:32 am CDT Apr 22, 2026
Forecast Valid: 5am CDT Apr 22, 2026-6pm CDT Apr 28, 2026

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Detailed Forecast

Today
W wind 5 to 10 kt becoming N in the afternoon. Patchy fog after 8am. Waves 1 ft or less.
Tonight
Variable winds 5 kt or less. Patchy dense fog. Waves 1 ft or less.
Thursday
S wind around 10 kt. Mostly sunny. Waves 1 ft or less.
Thursday Night
S wind around 15 kt. A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Waves 1 to 2 ft.
Friday
S wind 10 to 15 kt. Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.
Friday Night
W wind around 10 kt becoming NNW after midnight. A chance of showers before 1am. Waves 1 ft or less.
Saturday
NNW wind around 10 kt. Mostly sunny. Waves 1 to 2 ft.
Saturday Night
N wind 5 to 10 kt. Mostly cloudy. Waves 1 to 2 ft.
Sunday
NE wind 5 to 10 kt. Mostly sunny. 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: 41.91°N 87.32°W
Last Update: 5:32 am CDT Apr 22, 2026
Forecast Valid: 5am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
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