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Milwaukee, WI Local Forecast Office

4NM NE Port Washington WI

Marine Point Forecast

[NOTICE]

Tonight
Low: 35 °F
⇑SSE 30kt
10ft

Storm Warning
Friday
High: 38 °F
WNW 30kt
6ft

Storm Warning
Friday Night
Low: 28 °F
NW 20kt⇓
1ft

Storm Warning
Saturday
High: 34 °F
SE 10kt
< 1ft
Saturday Night
Low: 32 °F
⇑E 25kt
6ft
Sunday
High: 35 °F
NE 30kt
12ft
Sunday Night
Low: 19 °F
N 35kt
12-14ft
Monday
High: 22 °F
NW 35kt
9ft
Monday Night
Low: 8 °F
NW 30kt
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:02 pm CDT Mar 12, 2026
Forecast Valid: 9pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSE wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 40 kt. Rain before 2am, then rain and snow likely between 2am and 3am, then rain after 3am. Waves 3 ft building to 10 ft.

Friday

WSW wind 20 to 30 kt becoming WNW in the afternoon. Winds could gust as high as 50 kt. A chance of rain before 11am, then a chance of snow between 11am and 3pm. Waves 6 ft subsiding to 2 ft.

Friday Night

NW wind 15 to 20 kt decreasing to 10 to 15 kt after midnight. Winds could gust as high as 30 kt. Partly cloudy. Waves around 1 ft.

Saturday

N wind 5 to 10 kt becoming SE in the afternoon. Cloudy. Waves 1 ft or less.

Saturday Night

E wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Snow before 4am, then snow, possibly mixed with sleet. The snow could be heavy at times. Waves 1 ft building to 6 ft.

Sunday

E wind 25 to 30 kt becoming NE in the afternoon. Winds could gust as high as 40 kt. Snow, possibly mixed with sleet before 1pm, then snow, possibly mixed with rain and sleet. Waves 9 ft building to 12 ft.

Sunday Night

N wind around 35 kt, with gusts as high as 45 kt. Snow, possibly mixed with rain, becoming all snow after 1am. The snow could be heavy at times. Widespread freezing spray after 1am. Waves 12 to 14 ft.

Monday

NW wind 30 to 35 kt, with gusts as high as 45 kt. Snow likely. Widespread freezing spray before 10am. Waves 9 ft subsiding to 3 ft.

Monday Night

NW wind 25 to 30 kt. A slight chance of snow. Waves around 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.