Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

20NM SW Seattle WA

Marine Point Forecast

[NOTICE]

Friday
Light Wind
< 1ft
Friday Night
SW 11kt
< 1ft
Saturday
SW 10kt
< 1ft
Saturday Night
SSW 10kt
< 1ft
Sunday
SSW 7kt
< 1ft
Sunday Night
⇑N 7kt
< 1ft
Monday
NNE 9kt
< 1ft
Monday Night
NNE 8kt⇓
< 1ft
Tuesday
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Aug 20, 2026
Forecast Valid: 1am PDT Aug 21, 2026-6pm PDT Aug 27, 2026

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Detailed Forecast

Friday

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

Friday Night

SW wind 5 to 11 kt. A chance of rain, mainly between 4am and 5am. Waves 1 ft or less.

Saturday

SW wind around 10 kt. A chance of rain, mainly between 7am and 1pm. Waves 1 ft or less.

Saturday Night

SSW wind 7 to 10 kt. Increasing clouds. Waves 1 ft or less.

Sunday

SSW wind around 7 kt. Mostly cloudy. Waves 1 ft or less.

Sunday Night

Variable winds less than 5 kt becoming N 5 to 7 kt in the evening. Partly cloudy. Waves 1 ft or less.

Monday

NNE wind 6 to 9 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

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

Tuesday

Variable winds 5 kt or less. Mostly 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.