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

17NM S Seattle WA

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:S wind around 6 kt. Rain likely, mainly after 5am. Waves 1 ft or less.

      S 6kt
      < 1ft

    • Saturday

      Saturday:SSW wind around 6 kt becoming variable and less than 5 kt. Rain and thunderstorms likely before 2pm, then a chance of rain. Waves 1 ft or less.

      SSW 6kt⇓
      < 1ft

    • Saturday Night

      Saturday Night:SW wind 5 to 8 kt becoming S after midnight. Increasing clouds. Waves 1 ft or less.

      SW 8kt
      < 1ft

    • Sunday

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

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

      Light Wind
      < 1ft

    • Monday

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

      Light Wind
      < 1ft

    • Monday Night

      Monday Night:N wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Waves 1 ft or less.

      N 6kt⇓
      < 1ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming SW 5 to 9 kt in the afternoon. A slight chance of rain. Waves 1 ft or less.

      ⇑SW 9kt
      < 1ft

    • Tuesday Night

      Tuesday Night:WSW wind 9 to 11 kt becoming S after midnight. A chance of rain. Waves around 1 ft.

      WSW 11kt
      1ft


Associated Zone Forecast which includes this point

Last Update: 11:26 pm PDT Aug 28, 2026
Forecast Valid: 12am PDT Aug 29, 2026-6pm PDT Sep 4, 2026

View Nearby Observations

Detailed Forecast


Overnight
S wind around 6 kt. Rain likely, mainly after 5am. Waves 1 ft or less.
Saturday
SSW wind around 6 kt becoming variable and less than 5 kt. Rain and thunderstorms likely before 2pm, then a chance of rain. Waves 1 ft or less.
Saturday Night
SW wind 5 to 8 kt becoming S 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 5 kt or less. Partly cloudy. Waves 1 ft or less.
Monday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Monday Night
N wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Waves 1 ft or less.
Tuesday
Variable winds less than 5 kt becoming SW 5 to 9 kt in the afternoon. A slight chance of rain. Waves 1 ft or less.
Tuesday Night
WSW wind 9 to 11 kt becoming S after midnight. A chance of 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: 47.34°N 122.4°W
Last Update: 11:26 pm PDT Aug 28, 2026
Forecast Valid: 12am PDT Aug 29, 2026-6pm PDT Sep 4, 2026
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