Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

18NM WNW Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
Light Wind
< 1ft
Friday
Light Wind
< 1ft
Friday Night
Light Wind
< 1ft
Saturday
⇑S 19kt
< 1ft
Saturday Night
W 13kt⇓
< 1ft
Sunday
Light Wind
< 1ft
Sunday Night
N 8kt⇓
< 1ft
Monday
⇑NNE 12kt
< 1ft
Monday Night
N 14kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 am PDT Jul 30, 2026
Forecast Valid: 8pm PDT Jul 30, 2026-6pm PDT Aug 6, 2026

View Nearby Observations

Detailed Forecast

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 5 kt or less. Increasing clouds. Waves 1 ft or less.

Saturday

S wind 6 to 11 kt increasing to 14 to 19 kt in the morning. Winds could gust as high as 25 kt. A chance of rain after 11am. Waves 1 ft or less.

Saturday Night

W wind 8 to 13 kt becoming variable and less than 5 kt in the evening. A chance of rain. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. A chance of rain. Waves 1 ft or less.

Sunday Night

N wind 5 to 8 kt becoming variable and less than 5 kt in the evening. Mostly clear. Waves 1 ft or less.

Monday

Variable winds less than 5 kt becoming NNE 7 to 12 kt in the afternoon. Sunny. Waves 1 ft or less.

Monday Night

N wind 9 to 14 kt becoming variable and less than 5 kt after midnight. Mostly clear. 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.