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Seattle, WA Local Forecast Office

20NM SSW Seattle WA

Marine Point Forecast

[NOTICE]
    • Today

      Today:SW wind around 6 kt becoming variable and less than 5 kt in the morning. Rain, mainly before noon.  Patchy fog before noon.  Waves 1 ft or less.

      SW 6kt⇓
      < 1ft

    • Tonight

      Tonight:Variable winds 5 kt or less. Rain likely, mainly before 1am.   Waves 1 ft or less.

      Light Wind
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming SSW around 6 kt in the afternoon. A chance of rain, mainly before 4pm.   Waves 1 ft or less.

      ⇑SSW 6kt
      < 1ft

    • Friday Night

      Friday Night:SSW wind around 6 kt becoming variable and less than 5 kt after midnight. A slight chance of rain before 10pm.   Waves 1 ft or less.

      SSW 6kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. A slight chance of rain after 4pm.   Waves 1 ft or less.

      Light Wind
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds less than 5 kt becoming SSW 5 to 8 kt in the evening. Rain likely, mainly after 4am.   Waves 1 ft or less.

      ⇑SSW 8kt
      < 1ft

    • Sunday

      Sunday:SSW wind around 10 kt. Rain likely, mainly after 4pm.   Waves around 1 ft.

      SSW 10kt
      1ft

    • Sunday Night

      Sunday Night:S wind around 8 kt. Rain.   Waves 1 ft or less.

      S 8kt
      < 1ft

    • Monday

      Monday:SSW wind 13 to 19 kt, with gusts as high as 29 kt. Rain.   Waves around 1 ft.

      SSW 19kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 3:45 am PST Dec 11, 2025
Forecast Valid: 5am PST Dec 11, 2025-6pm PST Dec 17, 2025

View Nearby Observations

Detailed Forecast


Today
SW wind around 6 kt becoming variable and less than 5 kt in the morning. Rain, mainly before noon. Patchy fog before noon. Waves 1 ft or less.
Tonight
Variable winds 5 kt or less. Rain likely, mainly before 1am. Waves 1 ft or less.
Friday
Variable winds less than 5 kt becoming SSW around 6 kt in the afternoon. A chance of rain, mainly before 4pm. Waves 1 ft or less.
Friday Night
SSW wind around 6 kt becoming variable and less than 5 kt after midnight. A slight chance of rain before 10pm. Waves 1 ft or less.
Saturday
Variable winds 5 kt or less. A slight chance of rain after 4pm. Waves 1 ft or less.
Saturday Night
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the evening. Rain likely, mainly after 4am. Waves 1 ft or less.
Sunday
SSW wind around 10 kt. Rain likely, mainly after 4pm. Waves around 1 ft.
Sunday Night
S wind around 8 kt. Rain. Waves 1 ft or less.
Monday
SSW wind 13 to 19 kt, with gusts as high as 29 kt. Rain. Waves around 1 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 47.29°N 122.45°W
Last Update: 3:45 am PST Dec 11, 2025
Forecast Valid: 5am PST Dec 11, 2025-6pm PST Dec 17, 2025
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