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Green Bay, WI Local Forecast Office

8NM SW Washington Island WI

Marine Point Forecast

[NOTICE]

Today
High: 39 °F
SW 12kt
< 1ft
Tonight
Low: 31 °F
Light Wind
< 1ft
Wednesday
High: 40 °F
S 7kt
< 1ft
Wednesday Night
Low: 35 °F
Light Wind
< 1ft
Thursday
High: 40 °F
N 12kt
< 1ft
Thursday Night
Low: 19 °F
N 14kt
2ft
Friday
High: 32 °F
N 9kt
< 1ft
Friday Night
Low: 21 °F
W 7kt
< 1ft
Saturday
High: 39 °F
W 9kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:06 am CDT Mar 24, 2026
Forecast Valid: 6am CDT Mar 24, 2026-6pm CDT Mar 30, 2026

View Nearby Observations

Detailed Forecast

Today

SW wind 5 to 12 kt, with gusts as high as 19 kt. Mostly cloudy. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

Wednesday

S wind 5 to 7 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy. Waves 1 ft or less.

Thursday

W wind 5 to 12 kt becoming N in the afternoon. Winds could gust as high as 18 kt. A chance of rain before 4pm, then a slight chance of snow. Waves 1 ft or less.

Thursday Night

N wind 11 to 14 kt, with gusts as high as 21 kt. A slight chance of snow before 7pm. Waves around 2 ft.

Friday

N wind 6 to 9 kt becoming WNW in the afternoon. Mostly sunny. Waves 1 ft or less.

Friday Night

NNW wind 5 to 7 kt becoming WSW after midnight. Partly cloudy. Waves 1 ft or less.

Saturday

W wind around 9 kt. Sunny. Waves around 1 ft.

*Notices:

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.
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.