Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

For More Weather Information:

Milwaukee, WI Local Forecast Office

Port Washington WI

Marine Point Forecast

[NOTICE]

Tonight
Low: 61 °F
ESE 15kt
6ft
Saturday
High: 65 °F
SE 15kt
6-7ft
Saturday Night
Low: 59 °F
NNE 10kt
3-5ft
Sunday
High: 62 °F
NE 25kt
4-6ft
Sunday Night
Low: 55 °F
NE 25kt
5-6ft
Monday
High: 61 °F
ENE 25kt
5-6ft
Monday Night
Low: 52 °F
ENE 20kt
5ft
Tuesday
High: 61 °F
ENE 25kt
4-5ft
Tuesday Night
Low: 53 °F
ENE 20kt
4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:52 pm CDT Sep 18, 2026
Forecast Valid: 10pm CDT Sep 18, 2026-6pm CDT Sep 25, 2026

View Nearby Observations

Detailed Forecast

Tonight

ESE wind around 15 kt. Showers, with thunderstorms also possible after 1am. Some of the storms could produce heavy rainfall. Waves 3 ft building to 6 ft.

Saturday

SE wind 10 to 15 kt. Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 3pm, then showers likely and possibly a thunderstorm after 3pm. Waves 6 to 7 ft.

Saturday Night

E wind around 10 kt becoming NNE in the evening. Showers likely and possibly a thunderstorm. Waves 3 to 5 ft.

Sunday

NE wind 15 to 25 kt, with gusts as high as 30 kt. A slight chance of showers before 1pm. Waves 4 to 6 ft.

Sunday Night

NE wind 20 to 25 kt, with gusts as high as 30 kt. Mostly cloudy. Waves 5 to 6 ft.

Monday

ENE wind 20 to 25 kt. Mostly cloudy. Waves 5 to 6 ft.

Monday Night

ENE wind around 20 kt, with gusts as high as 25 kt. Mostly cloudy. Waves around 5 ft.

Tuesday

ENE wind 20 to 25 kt. Partly sunny. Waves 4 to 5 ft.

Tuesday Night

ENE wind 15 to 20 kt. Mostly cloudy. Waves around 4 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.