Hazardous Weather Conditions

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Green Bay, WI Local Forecast Office

20NM ESE Washington Island WI

Marine Point Forecast

[NOTICE]
    • Columbus Day

      Columbus Day:S wind around 8 kt becoming ENE in the afternoon. Mostly sunny. Waves around 2 ft.

      High: 64 °F

      S 8kt
      2ft

    • Tonight

      Tonight:E wind 7 to 10 kt becoming SE after midnight. A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am.   Waves around 2 ft.

      Low: 64 °F

      E 10kt
      2ft

    • Tuesday

      Tuesday:NNW wind 10 to 14 kt. A slight chance of thunderstorms before 7am.   Waves 2 to 3 ft.

      High: 63 °F

      NNW 14kt
      2-3ft

    • Tuesday Night

      Tuesday Night:NNW wind 7 to 9 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 52 °F

      NNW 9kt
      < 1ft

    • Wednesday

      Wednesday:N wind around 11 kt. Partly sunny. Waves around 1 ft.

      High: 61 °F

      N 11kt
      1ft

    • Wednesday Night

      Wednesday Night:N wind 8 to 11 kt becoming ENE after midnight. Mostly cloudy. Waves around 1 ft.

      Low: 51 °F

      N 11kt
      1ft

    • Thursday

      Thursday:E wind 6 to 10 kt becoming SSE in the afternoon. A chance of showers after 1pm.   Waves 1 ft or less.

      High: 63 °F

      ESE 10kt
      < 1ft

    • Thursday Night

      Thursday Night:WSW wind 6 to 11 kt becoming WNW 17 to 22 kt after midnight. Showers likely, with thunderstorms also possible after 1am.   Waves 1 ft or less building to 3 ft.

      Low: 50 °F

      ⇑WNW 22kt
      Waves Building3ft

    • Friday

      Friday:NNW wind 25 to 30 kt, with gusts as high as 37 kt. A chance of showers.   Waves around 7 ft.

      High: 57 °F

      NNW 30kt
      7ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:31 am CDT Oct 12, 2026
Forecast Valid: 11am CDT Oct 12, 2026-6pm CDT Oct 18, 2026

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Detailed Forecast

Columbus Day
S wind around 8 kt becoming ENE in the afternoon. Mostly sunny. Waves around 2 ft.
Tonight
E wind 7 to 10 kt becoming SE after midnight. A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 2am, then a chance of showers and thunderstorms after 2am. Waves around 2 ft.
Tuesday
NNW wind 10 to 14 kt. A slight chance of thunderstorms before 7am. Waves 2 to 3 ft.
Tuesday Night
NNW wind 7 to 9 kt. Mostly cloudy. Waves 1 ft or less.
Wednesday
N wind around 11 kt. Partly sunny. Waves around 1 ft.
Wednesday Night
N wind 8 to 11 kt becoming ENE after midnight. Mostly cloudy. Waves around 1 ft.
Thursday
E wind 6 to 10 kt becoming SSE in the afternoon. A chance of showers after 1pm. Waves 1 ft or less.
Thursday Night
WSW wind 6 to 11 kt becoming WNW 17 to 22 kt after midnight. Showers likely, with thunderstorms also possible after 1am. Waves 1 ft or less building to 3 ft.
Friday
NNW wind 25 to 30 kt, with gusts as high as 37 kt. A chance of showers. Waves around 7 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: 45.22°N 86.48°W
Last Update: 9:31 am CDT Oct 12, 2026
Forecast Valid: 11am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
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