Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

17NM S Seattle WA

Marine Point Forecast

[NOTICE]

Today
SSW 7kt⇓
< 1ft
Tonight
Light Wind
< 1ft
Sunday
Light Wind
< 1ft
Sunday Night
SSW 13kt
< 1ft
Monday
SW 13kt
1ft
Monday Night
SSW 15kt
1ft
Tuesday
SSW 20kt
1ft
Tuesday Night
SSW 19kt
1-2ft
Wednesday
SSW 10kt
1ft

Associated Zone Forecast which includes this point

Last Update: 11:27 pm PDT Apr 10, 2026
Forecast Valid: 9am PDT Apr 11, 2026-6pm PDT Apr 17, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Rain before 3pm, then a slight chance of rain after 5pm. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. A slight chance of rain before 8pm. Waves 1 ft or less.

Sunday

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

Sunday Night

W wind 5 to 13 kt becoming SSW after midnight. A chance of rain. Waves 1 ft or less.

Monday

SW wind around 13 kt. A chance of rain. Waves around 1 ft.

Monday Night

SSW wind around 15 kt. A chance of rain before 11pm. Waves around 1 ft.

Tuesday

SSW wind 15 to 20 kt. Rain, mainly after 11am. Waves around 1 ft.

Tuesday Night

SSW wind 14 to 19 kt. Rain. Waves 1 to 2 ft.

Wednesday

SSW wind 7 to 10 kt. A chance of rain, then showers likely and possibly a thunderstorm after 11am. Waves around 1 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.