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Chicago, IL Local Forecast Office

12NM NNE Gary IN

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind around 10 kt becoming WNW after midnight. Snow showers, mainly before 1am.   Waves 1 ft or less.

      Low: 28 °F

      WNW 10kt
      < 1ft

    • Tuesday

      Tuesday:NW wind around 10 kt becoming WSW in the afternoon. Mostly cloudy. Waves around 1 ft.

      High: 30 °F

      NW 10kt
      1ft

    • Tuesday Night

      Tuesday Night:SSW wind 15 to 20 kt. Mostly cloudy. Waves 1 to 3 ft.

      Low: 27 °FRising Temperatures

      SSW 20kt
      1-3ft

    • Wednesday

      Wednesday:SSW wind 15 to 20 kt becoming WNW in the afternoon. Snow likely, mainly after noon.   Waves 2 to 3 ft.

      High: 36 °F

      SSW 20kt
      2-3ft

    • Wednesday Night

      Wednesday Night:NW wind 20 to 25 kt. A chance of snow, mainly before midnight.   Waves 3 ft building to 7 ft.

      Low: 21 °FRising Temperatures

      NW 25kt
      Waves Building7ft

    • Thursday

      Thursday:NW wind 15 to 20 kt becoming W 10 to 15 kt in the afternoon. Mostly sunny. Waves 6 ft subsiding to 2 ft.

      High: 23 °F

      NW 20kt⇓
      6ftWaves Subsiding

    • Thursday Night

      Thursday Night:SSW wind 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft.

      Low: 15 °FRising Temperatures

      SSW 15kt
      1-2ft

    • Friday

      Friday:SSW wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Waves around 2 ft.

      High: 30 °F

      SSW 15kt
      2ft

    • Friday Night

      Friday Night:SW wind around 15 kt. A chance of snow.   Waves 1 to 2 ft.

      Low: 28 °FRising Temperatures

      SW 15kt
      1-2ft


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 pm CST Dec 1, 2025
Forecast Valid: 7pm CST Dec 1, 2025-6pm CST Dec 8, 2025

View Nearby Observations

Detailed Forecast

Tonight
SSE wind around 10 kt becoming WNW after midnight. Snow showers, mainly before 1am. Waves 1 ft or less.
Tuesday
NW wind around 10 kt becoming WSW in the afternoon. Mostly cloudy. Waves around 1 ft.
Tuesday Night
SSW wind 15 to 20 kt. Mostly cloudy. Waves 1 to 3 ft.
Wednesday
SSW wind 15 to 20 kt becoming WNW in the afternoon. Snow likely, mainly after noon. Waves 2 to 3 ft.
Wednesday Night
NW wind 20 to 25 kt. A chance of snow, mainly before midnight. Waves 3 ft building to 7 ft.
Thursday
NW wind 15 to 20 kt becoming W 10 to 15 kt in the afternoon. Mostly sunny. Waves 6 ft subsiding to 2 ft.
Thursday Night
SSW wind 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft.
Friday
SSW wind around 15 kt, with gusts as high as 20 kt. Partly sunny. Waves around 2 ft.
Friday Night
SW wind around 15 kt. A chance of snow. Waves 1 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: 41.75°N 87.22°W
Last Update: 5:32 pm CST Dec 1, 2025
Forecast Valid: 7pm CST Dec 1, 2025-6pm CST Dec 8, 2025
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