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18NM NW Seattle WA

[NOTICE]

Last Update: 8:00 pm PDT Oct 15, 2025
Forecast Valid: 10pm PDT Oct 15, 2025-6pm PDT Oct 22, 2025

Tonight

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

Thursday

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

Thursday Night

Variable winds 5 kt or less. Rain. Waves 1 ft or less.

Friday

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

Friday Night

Variable winds 5 kt or less. A chance of rain, mainly before 11pm. Waves 1 ft or less.

Saturday

Variable winds less than 5 kt becoming SSE 7 to 12 kt in the afternoon. Rain, mainly after 11am. Waves 1 ft or less.

Saturday Night

S wind 10 to 17 kt. Rain. Waves 1 ft or less.

Sunday

S wind 7 to 9 kt. Showers. Waves 1 ft or less.

Sunday Night

SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Showers. 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.