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

18NM NW Seattle WA

Marine Point Forecast

[NOTICE]

Today
Light Wind
< 1ft
Tonight
Light Wind
< 1ft
Monday
Light Wind
< 1ft
Monday Night
Light Wind
< 1ft
Tuesday
S 18kt
< 1ft
Tuesday Night
S 19kt⇓
< 1ft
Wednesday
Light Wind
< 1ft
Wednesday Night
Light Wind
< 1ft
Thursday
Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 11:27 pm PDT Apr 11, 2026
Forecast Valid: 5am PDT Apr 12, 2026-6pm PDT Apr 18, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. A chance of rain, mainly after 5pm. Patchy fog before 8am. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. A chance of rain, mainly after midnight. Waves 1 ft or less.

Monday

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

Monday Night

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

Tuesday

S wind 8 to 18 kt, with gusts as high as 31 kt. Rain. Waves 1 ft or less.

Tuesday Night

S wind 14 to 19 kt becoming variable and less than 5 kt after midnight. Winds could gust as high as 34 kt. Rain, mainly before 11pm. Waves 1 ft or less.

Wednesday

Variable winds 5 kt or less. A chance of rain, then showers and possibly a thunderstorm after 11am. Waves 1 ft or less.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. A slight chance of rain. 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.