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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

For More Weather Information:

Seattle, WA Local Forecast Office

35NM WSW Seattle WA

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SSW wind around 8 kt. Sunny. Waves 1 ft or less.

      SSW 8kt
      < 1ft

    • Tonight

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

      Light Wind
      < 1ft

    • Saturday

      Saturday:Variable winds 5 kt or less. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

      Light Wind
      < 1ft

    • Saturday Night

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

      Light Wind
      < 1ft

    • Sunday

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

      Light Wind
      < 1ft

    • Sunday Night

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

      Light Wind
      < 1ft

    • Tuesday

      Tuesday:Variable winds 5 kt or less. Partly sunny. Waves 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 1:27 pm PDT Sep 18, 2026
Forecast Valid: 2pm PDT Sep 18, 2026-6pm PDT Sep 24, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SSW wind around 8 kt. Sunny. Waves 1 ft or less.
Tonight
Variable winds 5 kt or less. Increasing clouds. Waves 1 ft or less.
Saturday
Variable winds 5 kt or less. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.
Saturday Night
Variable winds 5 kt or less. Increasing clouds. Waves 1 ft or less.
Sunday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Sunday Night
Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.
Monday
Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.
Monday Night
Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.
Tuesday
Variable winds 5 kt or less. Partly sunny. 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 123.13°W
Last Update: 1:27 pm PDT Sep 18, 2026
Forecast Valid: 2pm PDT Sep 18, 2026-6pm PDT Sep 24, 2026
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