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Milwaukee, WI Local Forecast Office

9NM S Port Washington WI

Marine Point Forecast

[NOTICE]

Tonight
Low: 23 °F
SSW 20kt
2-3ft

Small Craft Advisory
Tuesday
High: 34 °F
SW 20kt
1-2ft

Small Craft Advisory
Tuesday Night
Low: 32 °F
W 20kt
1-2ft
Wednesday
High: 35 °F
NNW 25kt
2-4ft
Wednesday Night
Low: 15 °F
NW 20kt
1-3ft
Thursday
High: 23 °F
WNW 10kt
< 1ft
Thursday Night
Low: 12 °F
WNW 15kt
< 1ft
Friday
High: 22 °F
W 20kt
1-2ft
Friday Night
Low: 2 °F
WNW 25kt
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:11 pm CST Dec 8, 2025
Forecast Valid: 8pm CST Dec 8, 2025-6pm CST Dec 15, 2025

View Nearby Observations

Detailed Forecast

Tonight

SSW wind 15 to 20 kt, with gusts as high as 25 kt. Snow, mainly before 3am. Waves 2 to 3 ft.

Tuesday

SW wind 10 to 20 kt becoming W in the morning. A chance of snow before 9am, then a slight chance of snow after 5pm. Waves 1 to 2 ft.

Tuesday Night

SSW wind 10 to 20 kt becoming WNW after midnight. Winds could gust as high as 25 kt. Rain and snow before 1am, then rain between 1am and 3am, then rain and snow likely after 3am. Waves 1 to 2 ft.

Wednesday

NNW wind 20 to 25 kt. Snow likely, possibly mixed with rain, becoming all snow after 9am. Waves 2 to 4 ft.

Wednesday Night

NW wind 15 to 20 kt. A slight chance of snow showers before midnight. Waves 1 to 3 ft.

Thursday

WNW wind around 10 kt. Partly sunny. Waves 1 ft or less.

Thursday Night

WNW wind 10 to 15 kt. A slight chance of snow showers. Waves 1 ft or less.

Friday

W wind 15 to 20 kt, with gusts as high as 25 kt. A chance of snow showers. Waves 1 to 2 ft.

Friday Night

WNW wind around 25 kt, with gusts as high as 30 kt. A chance of snow showers. Waves around 2 ft.

Wave heights are for ice free areas.

*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.