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Milwaukee, WI Local Forecast Office

9NM S Port Washington WI

Marine Point Forecast

[NOTICE]

Tonight
Low: 32 °F
NNW 20kt
1-2ft

Gale Warning
Wednesday
High: 33 °F
NNW 25kt
6ft

Gale Warning
Wednesday Night
Low: 14 °F
WNW 20kt
1-3ft
Thursday
High: 22 °F
W 15kt
< 1ft
Thursday Night
Low: 16 °F
W 10kt
< 1ft
Friday
High: 27 °F
⇑W 20kt
1-2ft
Friday Night
Low: 7 °F
WNW 25kt
2ft
Saturday
High: 11 °F
WNW 20kt
1-2ft
Saturday Night
Low: 0 °F
WNW 20kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:37 pm CST Dec 9, 2025
Forecast Valid: 8pm CST Dec 9, 2025-6pm CST Dec 16, 2025

View Nearby Observations

Detailed Forecast

Tonight

S wind 15 to 20 kt becoming NNW after midnight. Snow, possibly mixed with rain. Waves 1 to 2 ft.

Wednesday

NNW wind 20 to 25 kt, with gusts as high as 35 kt. Snow, possibly mixed with rain before 8am, then a chance of snow between 8am and 9am. Waves 3 ft building to 6 ft.

Wednesday Night

WNW wind 15 to 20 kt. Mostly cloudy, then gradually becoming mostly clear. Waves 1 to 3 ft.

Thursday

W wind 10 to 15 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

W wind 5 to 10 kt. A chance of snow. Waves 1 ft or less.

Friday

W wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. A chance of snow. Waves 1 to 2 ft.

Friday Night

WNW wind 20 to 25 kt. A slight chance of snow before midnight. Waves around 2 ft.

Saturday

WNW wind around 20 kt. A chance of snow. Waves 1 to 2 ft.

Saturday Night

WNW wind around 20 kt. A chance of snow. Waves 1 to 2 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.