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20NM SW Seattle WA

[NOTICE]

Last Update: 12:25 pm PDT Oct 8, 2026
Forecast Valid: 3pm PDT Oct 8, 2026-6pm PDT Oct 15, 2026

This Afternoon

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

Tonight

Variable winds less than 5 kt becoming SSW 9 to 14 kt after midnight. A slight chance of rain after 5am. Waves 1 ft or less.

Friday

SSW wind 8 to 17 kt becoming E in the afternoon. A chance of rain, mainly before 9am. Waves 1 ft or less.

Friday Night

SE wind 5 to 7 kt becoming SW in the evening. Mostly cloudy. Waves 1 ft or less.

Saturday

Variable winds less than 5 kt becoming NNE 5 to 8 kt in the afternoon. Partly sunny. Waves 1 ft or less.

Saturday Night

NNE wind 6 to 10 kt. Mostly clear. Waves 1 ft or less.

Sunday

NNE wind 8 to 11 kt. Sunny. Waves 1 ft or less.

Sunday Night

NNE wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Clear. Waves 1 ft or less.

Columbus Day

Variable winds 5 kt or less. 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.