Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

20NM SW Seattle WA

Marine Point Forecast

[NOTICE]

Overnight
Light Wind
< 1ft
Thursday
SSW 6kt
< 1ft
Thursday Night
Light Wind
< 1ft
Friday
Light Wind
< 1ft
Friday Night
⇑SSW 10kt
< 1ft
Saturday
SSW 15kt
< 1ft
Saturday Night
SW 16kt
< 1ft
Sunday
Light Wind
< 1ft
Sunday Night
NNE 8kt⇓
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Jul 29, 2026
Forecast Valid: 12am PDT Jul 30, 2026-6pm PDT Aug 5, 2026

View Nearby Observations

Detailed Forecast

Overnight

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

Thursday

SSW wind around 6 kt. Sunny. Waves 1 ft or less.

Thursday Night

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 10 kt in the evening. Mostly clear. Waves 1 ft or less.

Saturday

SSW wind 12 to 15 kt. A slight chance of rain after 11am. Waves 1 ft or less.

Saturday Night

SW wind 7 to 16 kt. Mostly clear. Waves 1 ft or less.

Sunday

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

Sunday Night

NNE wind 5 to 8 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.