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Green Bay, WI Local Forecast Office

20NM ESE Washington Island WI

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:S wind 17 to 19 kt. Sunny. Waves 4 to 5 ft.

      High: 65 °F

      S 19kt
      4-5ft

    • Tonight

      Tonight:SSW wind 12 to 17 kt, with gusts as high as 23 kt. Increasing clouds. Waves 2 to 4 ft.

      Low: 61 °F

      SSW 17kt
      2-4ft

    • Columbus Day

      Columbus Day:SSW wind 7 to 11 kt. Cloudy, then gradually becoming mostly sunny. Waves around 2 ft.

      High: 65 °F

      SSW 11kt
      2ft

    • Monday Night

      Monday Night:SE wind 7 to 13 kt becoming NE in the evening. A chance of showers, then showers and possibly a thunderstorm after 1am.   Waves 2 to 3 ft.

      Low: 57 °F

      NE 13kt
      2-3ft

    • Tuesday

      Tuesday:N wind 13 to 15 kt. A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm.   Waves around 3 ft.

      High: 65 °F

      N 15kt
      3ft

    • Tuesday Night

      Tuesday Night:NNW wind 9 to 11 kt. Mostly cloudy. Waves 1 to 2 ft.

      Low: 52 °F

      NNW 11kt
      1-2ft

    • Wednesday

      Wednesday:N wind around 10 kt. Partly sunny. Waves around 1 ft.

      High: 62 °F

      N 10kt
      1ft

    • Wednesday Night

      Wednesday Night:N wind 9 to 12 kt becoming ENE after midnight. Mostly cloudy. Waves around 1 ft.

      Low: 52 °F

      NNE 12kt
      1ft

    • Thursday

      Thursday:SE wind 9 to 12 kt. A chance of showers.   Waves around 1 ft.

      High: 63 °F

      SE 12kt
      1ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:41 pm CDT Oct 11, 2026
Forecast Valid: 12pm CDT Oct 11, 2026-6pm CDT Oct 17, 2026

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Detailed Forecast

This Afternoon
S wind 17 to 19 kt. Sunny. Waves 4 to 5 ft.
Tonight
SSW wind 12 to 17 kt, with gusts as high as 23 kt. Increasing clouds. Waves 2 to 4 ft.
Columbus Day
SSW wind 7 to 11 kt. Cloudy, then gradually becoming mostly sunny. Waves around 2 ft.
Monday Night
SE wind 7 to 13 kt becoming NE in the evening. A chance of showers, then showers and possibly a thunderstorm after 1am. Waves 2 to 3 ft.
Tuesday
N wind 13 to 15 kt. A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Waves around 3 ft.
Tuesday Night
NNW wind 9 to 11 kt. Mostly cloudy. Waves 1 to 2 ft.
Wednesday
N wind around 10 kt. Partly sunny. Waves around 1 ft.
Wednesday Night
N wind 9 to 12 kt becoming ENE after midnight. Mostly cloudy. Waves around 1 ft.
Thursday
SE wind 9 to 12 kt. A chance of showers. 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: 45.22°N 86.48°W
Last Update: 12:41 pm CDT Oct 11, 2026
Forecast Valid: 12pm CDT Oct 11, 2026-6pm CDT Oct 17, 2026
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