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Green Bay, WI Local Forecast Office

10NM SW Washington Island WI

Marine Point Forecast

[NOTICE]

Tonight
Low: 61 °F
S 9kt
< 1ft
Saturday
High: 78 °F
NW 8kt
< 1ft
Saturday Night
Low: 63 °F
Light Wind
< 1ft
Sunday
High: 78 °F
SSW 10kt
< 1ft
Sunday Night
Low: 61 °F
S 7kt⇓
< 1ft
Monday
High: 76 °F
Light Wind
< 1ft
Monday Night
Low: 62 °F
Light Wind
< 1ft
Tuesday
High: 76 °F
Light Wind
< 1ft
Tuesday Night
Low: 61 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:47 pm CDT Aug 7, 2026
Forecast Valid: 9pm CDT Aug 7, 2026-6pm CDT Aug 14, 2026

View Nearby Observations

Detailed Forecast

Tonight

S wind 7 to 9 kt becoming W after midnight. A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Waves 1 ft or less.

Saturday

NW wind 5 to 8 kt becoming SW in the afternoon. Sunny. Waves 1 ft or less.

Saturday Night

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

Sunday

SSW wind 5 to 10 kt. A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Waves 1 ft or less.

Sunday Night

S wind 5 to 7 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms before 4am, then a slight chance of showers. Waves 1 ft or less.

Monday

Variable winds 5 kt or less. A slight chance of showers, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Monday Night

Variable winds 5 kt or less. A slight chance of showers before 1am. Waves 1 ft or less.

Tuesday

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

Tuesday Night

Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Waves 1 ft or less.

*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.