Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Northern Plains and Upper Midwest

Dangerous heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms will produce damaging winds and heavy rainfall over portions of the northern/central Plains into the mid/upper-Mississippi Valleys today. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

17NM S Seattle WA

Marine Point Forecast

[NOTICE]

This Afternoon
Light Wind
< 1ft
Tonight
Light Wind
< 1ft
Friday
Light Wind
< 1ft
Friday Night
⇑SSW 9kt
< 1ft
Saturday
⇑SW 20kt
1ft
Saturday Night
SSW 16kt
1ft
Sunday
Light Wind
< 1ft
Sunday Night
N 9kt⇓
< 1ft
Monday
⇑N 9kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Jul 30, 2026
Forecast Valid: 3pm PDT Jul 30, 2026-6pm PDT Aug 6, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tonight

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

Friday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Friday Night

Variable winds less than 5 kt becoming SSW 5 to 9 kt after midnight. Increasing clouds. Waves 1 ft or less.

Saturday

SW wind 9 to 14 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 27 kt. A chance of rain after 11am. Waves around 1 ft.

Saturday Night

SSW wind 7 to 16 kt. Partly cloudy. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

Sunday Night

N wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Waves 1 ft or less.

Monday

Variable winds less than 5 kt becoming N 5 to 9 kt in the afternoon. Sunny. Waves 1 ft or less.

*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.