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

20NM SSW Seattle WA

Marine Point Forecast

[NOTICE]

Tonight
⇑SSW 6kt
< 1ft
Saturday
SSW 7kt⇓
< 1ft
Saturday Night
Light Wind
< 1ft
Sunday
Light Wind
< 1ft
Sunday Night
SSW 10kt
< 1ft
Monday
SW 12kt
1ft
Monday Night
SW 10kt
1ft
Tuesday
SSW 16kt
1ft
Tuesday Night
SSW 15kt
1ft

Associated Zone Forecast which includes this point

Last Update: 11:27 am PDT Apr 10, 2026
Forecast Valid: 8pm PDT Apr 10, 2026-6pm PDT Apr 17, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds less than 5 kt becoming SSW around 6 kt after midnight. Rain likely, mainly after 5am. Waves 1 ft or less.

Saturday

SSW wind 5 to 7 kt becoming variable and less than 5 kt in the afternoon. Rain, mainly before noon. Waves 1 ft or less.

Saturday Night

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

Sunday

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

Sunday Night

W wind 6 to 10 kt becoming SSW in the evening. A chance of rain, mainly before 11pm. Waves 1 ft or less.

Monday

SW wind 10 to 12 kt. A chance of rain. Waves around 1 ft.

Monday Night

SW wind around 10 kt. A chance of rain, mainly before 11pm. Waves around 1 ft.

Tuesday

SSW wind 10 to 16 kt. Rain. Waves around 1 ft.

Tuesday Night

SSW wind 11 to 15 kt, with gusts as high as 21 kt. Rain. 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.