National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

20NM SW Seattle WA

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:ESE wind around 6 kt becoming SSW after midnight. Rain likely, mainly after 5am. Waves 1 ft or less.

      SSE 6kt
      < 1ft

    • Saturday

      Saturday:SSW wind 5 to 8 kt. A chance of rain and thunderstorms before 2pm, then a slight chance of rain between 2pm and 4pm. Waves 1 ft or less.

      SSW 8kt
      < 1ft

    • Saturday Night

      Saturday Night:SW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Waves 1 ft or less.

      SW 7kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. Cloudy. Waves 1 ft or less.

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds less than 5 kt becoming N around 6 kt after midnight. Partly cloudy. Waves 1 ft or less.

      ⇑N 6kt
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming NNE around 6 kt in the afternoon. Mostly sunny. Waves 1 ft or less.

      ⇑NNE 6kt
      < 1ft

    • Monday Night

      Monday Night:N wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Waves 1 ft or less.

      N 7kt⇓
      < 1ft

    • Tuesday

      Tuesday:SSW wind 5 to 11 kt. A slight chance of rain. Waves 1 ft or less.

      SSW 11kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SW wind 10 to 12 kt. A chance of rain. Waves 1 ft or less.

      SW 12kt
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Aug 28, 2026
Forecast Valid: 11pm PDT Aug 28, 2026-6pm PDT Sep 4, 2026

View Nearby Observations

Detailed Forecast


Overnight
ESE wind around 6 kt becoming SSW after midnight. Rain likely, mainly after 5am. Waves 1 ft or less.
Saturday
SSW wind 5 to 8 kt. A chance of rain and thunderstorms before 2pm, then a slight chance of rain between 2pm and 4pm. Waves 1 ft or less.
Saturday Night
SW wind 5 to 7 kt becoming variable and less than 5 kt after midnight. Increasing clouds. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. Cloudy. Waves 1 ft or less.
Sunday Night
Variable winds less than 5 kt becoming N around 6 kt after midnight. Partly cloudy. Waves 1 ft or less.
Monday
Variable winds less than 5 kt becoming NNE around 6 kt in the afternoon. Mostly sunny. Waves 1 ft or less.
Monday Night
N wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Waves 1 ft or less.
Tuesday
SSW wind 5 to 11 kt. A slight chance of rain. Waves 1 ft or less.
Tuesday Night
SW wind 10 to 12 kt. A chance of rain. Waves 1 ft or less.

*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: 47.37°N 122.66°W
Last Update: 11:26 pm PDT Aug 28, 2026
Forecast Valid: 11pm PDT Aug 28, 2026-6pm PDT Sep 4, 2026
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