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Milwaukee, WI Local Forecast Office

9NM S Port Washington WI

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
S 10kt
< 1ft
Tonight
Low: 66 °F
Light Wind
< 1ft
Tuesday
High: 78 °F
SSE 10kt
< 1ft
Tuesday Night
Low: 69 °F
SSE 10kt
< 1ft
Wednesday
High: 78 °F
SSE 10kt
< 1ft
Wednesday Night
Low: 65 °F
NNE 10kt
1ft
Thursday
High: 70 °F
NNE 15kt
1-2ft
Thursday Night
Low: 62 °F
NNE 10kt
2ft
Friday
High: 69 °F
NE 10kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:24 am CDT Jul 14, 2025
Forecast Valid: 5am CDT Jul 14, 2025-6pm CDT Jul 20, 2025

View Nearby Observations

Detailed Forecast

Today

WSW wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves 1 ft or less.

Tonight

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

Tuesday

SW wind 5 to 10 kt becoming SSE in the afternoon. Sunny. Waves 1 ft or less.

Tuesday Night

SSE wind 5 to 10 kt becoming SSW after midnight. Mostly clear. Waves 1 ft or less.

Wednesday

SSW wind 5 to 10 kt becoming SE in the afternoon. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Wednesday Night

NNE wind around 10 kt becoming NNW after midnight. Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Waves around 1 ft.

Thursday

NNW wind 10 to 15 kt becoming NNE in the afternoon. A chance of showers and thunderstorms. Waves 1 to 2 ft.

Thursday Night

NNE wind around 10 kt. A chance of showers and thunderstorms before 1am, then a slight chance of showers. Waves around 2 ft.

Friday

NE wind around 10 kt. Mostly 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.