My Profile
  1. Member Settings
  2. My Devices
  3. Sign Out
Log In
    Favorites
        More Settings
      Elev undefined ft, undefined °undefined undefined °undefined

      Vashon, WA

      undefined Station67°
      Updated: 2:22 PM PDT on September 20, 2026 (GMT -7)
      5 minutes ago
      68°
      49°
      67
      Feels Like 67
      Sunny
      N
      8
      Higher temperature is expected today
      50
      50
      575
      90
      50
      7
      0 mph
      50
      50
      50
      50
      50
      50
      Radar · Now
        Hyper-local data from Weather Underground's network of
        400,000+ personal weather stations worldwide
        Today
        Mon 09/21
        High 68°f
         1% Precip. / 0 in
        Plentiful sunshine. High 68F. Winds N at 5 to 10 mph.
        Tonight
        Mon 09/21
        Low 47°f
         20% Precip. / 0 in
        Clear skies. Low 47F. Winds NNE at 5 to 10 mph.
        Tomorrow
        Tue 09/22
        High 67°f54°f
         21% Precip. / 0 in
        Cloudy skies early will become partly cloudy later in the day. High 67F. Winds light and variable.
        Hourly Forecast
        Now
        65°
        3PM
        66°
        4PM
        67°
        5PM
        67°
        6PM
        65°
        7PM
        62°
        7:11PM
        Sunset
        8PM
        59°
        9PM
        58°
        10PM
        56°
        11PM
        55°
        12AM
        54°
        1AM
        53°
        2AM
        52°
        3AM
        51°
        4AM
        50°
        5AM
        49°
        6AM
        49°
        6:55AM
        Sunrise
        7AM
        48°
        8AM
        51°
        9AM
        54°
        10AM
        55°
        11AM
        57°
        12PM
        59°
        1PM
        61°
        2PM
        63°
        Precipitation
        21%
        Pollen
        None
        Air Quality
        51
        Moderate
        UV Index
        4
        Moderate
        Additional Conditions
        1. Pressure 30.05 in
        2. Visibility 10 miles
        3. Clouds Clear
        4. Dew Point53°F
        5. Humidity 63%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSEA Station History
        Almanac for September 20, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 68°F 71°F 88°F 1974
        4. Low 49°F 53°F 40°F 1949
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.1 in -
        7. Snow 0 in 0 in -
        Almanac for September 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 67°F 70°F 88°F
        4. Low 49°F 53°F 39°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 6:54 AM 7:11 PM
        3. Civil Twilight 6:23 AM 7:41 PM
        4. Nautical Twilight 5:47 AM 8:18PM
        5. Astronomical Twilight 5:09 AM 8:55 PM
        1. Length of Visible Light 13h 18m
        2. Length of Day 12h 17m
        3. Tomorrow will be 3 minutes 22 seconds shorter
        1. Moon 4:47 PM -
        2. Waxing Gibbous69% of the Moon is Illuminated
        Sep 26
        Full Moon
        Oct 3
        Waning Half Last Qtr
        Oct 10
        New Moon
        Oct 18
        Waxing Half First Qtr
        Precipitation
        Loading…
        Health
        Loading…
        Weather Alerts
        Loading…
        Our AppsAbout UsContactCareersWeather Data APIs
        PWS NetworkWundermap
        Terms of UsePrivacy PolicyCookie NoticeAccessibility StatementAdChoicesData Vendors
        essentialaccessibility.com
        We recognize our responsibility to use data and technology for good. We may use or share your data with our data vendors. Take control of your data.
        Review All Privacy and Ad Settings
        Choose how my information is shared
        Data Rights
        The Weather Company The Weather Channel Weather Underground Storm Radar
        © The Weather Company, LLC 2026
        Glossary