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Green Bay, WI Local Forecast Office

4NM W Washington Island WI

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SW wind 7 to 14 kt, with gusts as high as 20 kt. Increasing clouds. Waves around 1 ft.

      Low: 58 °F

      SW 14kt
      1ft

    • Columbus Day

      Columbus Day:S wind 5 to 7 kt becoming E in the afternoon. Partly sunny. Waves 1 ft or less.

      High: 69 °F

      ESE 7kt
      < 1ft

    • Monday Night

      Monday Night:NE wind 6 to 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am.   Waves 1 ft or less.

      Low: 55 °F

      NE 10kt
      < 1ft

    • Tuesday

      Tuesday:N wind 10 to 14 kt. A chance of showers, mainly before 7am.   Waves 1 to 2 ft.

      High: 63 °F

      N 14kt
      1-2ft

    • Tuesday Night

      Tuesday Night:N wind around 8 kt. Mostly cloudy. Waves 1 ft or less.

      Low: 49 °F

      N 8kt
      < 1ft

    • Wednesday

      Wednesday:NNW wind around 9 kt. Partly sunny. Waves 1 ft or less.

      High: 60 °F

      NNW 9kt
      < 1ft

    • Wednesday Night

      Wednesday Night:N wind around 9 kt. Partly cloudy. Waves 1 ft or less.

      Low: 48 °F

      N 9kt
      < 1ft

    • Thursday

      Thursday:ENE wind 7 to 9 kt becoming SE in the afternoon. A chance of showers.   Waves 1 ft or less.

      High: 59 °F

      E 9kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind 6 to 11 kt becoming WNW 16 to 21 kt after midnight. Showers likely.   Waves 1 ft or less building to 3 ft.

      Low: 46 °F

      ⇑WNW 21kt
      Waves Building3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:36 pm CDT Oct 11, 2026
Forecast Valid: 8pm CDT Oct 11, 2026-6pm CDT Oct 18, 2026

View Nearby Observations

Detailed Forecast

Tonight
SW wind 7 to 14 kt, with gusts as high as 20 kt. Increasing clouds. Waves around 1 ft.
Columbus Day
S wind 5 to 7 kt becoming E in the afternoon. Partly sunny. Waves 1 ft or less.
Monday Night
NE wind 6 to 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Waves 1 ft or less.
Tuesday
N wind 10 to 14 kt. A chance of showers, mainly before 7am. Waves 1 to 2 ft.
Tuesday Night
N wind around 8 kt. Mostly cloudy. Waves 1 ft or less.
Wednesday
NNW wind around 9 kt. Partly sunny. Waves 1 ft or less.
Wednesday Night
N wind around 9 kt. Partly cloudy. Waves 1 ft or less.
Thursday
ENE wind 7 to 9 kt becoming SE in the afternoon. A chance of showers. Waves 1 ft or less.
Thursday Night
SSE wind 6 to 11 kt becoming WNW 16 to 21 kt after midnight. Showers likely. Waves 1 ft or less building to 3 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: 45.37°N 87.01°W
Last Update: 5:36 pm CDT Oct 11, 2026
Forecast Valid: 8pm CDT Oct 11, 2026-6pm CDT Oct 18, 2026
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