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      Elev 139 ft, 47.446 °N 122.276 °W

      SeaTac, WA

      Seattle–Tacoma Intl Airport Station63°
      Updated: 5:48 PM PDT on October 21, 2026 (GMT -7)
      5 minutes ago
      65°
      41°
      63
      Feels Like 63
      Mostly Cloudy
      N
      5
      Lower temperature is expected tomorrow
      Wundermap

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       Wundermap
      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
        Tonight
        Thu 10/22
        Low 44°f
         8% Precip. / 0 in
        Partly cloudy skies. Low 44F. Winds light and variable.
        Tomorrow
        Fri 10/23
        High 57°f
         10% Precip. / 0 in
        Partly cloudy skies. High 57F. Winds N at 5 to 10 mph.
        Tomorrow night
        Fri 10/23
        Low 43°f
         20% Precip. / 0 in
        Cloudy skies early, then partly cloudy after midnight. Low 43F. Winds NE at 5 to 10 mph.
        Hourly Forecast
        Now
        60°
        6PM
        59°
        6:10PM
        Sunset
        7PM
        57°
        8PM
        55°
        9PM
        54°
        10PM
        53°
        11PM
        51°
        12AM
        49°
        1AM
        48°
        2AM
        48°
        3AM
        48°
        4AM
        47°
        5AM
        46°
        6AM
        46°
        7AM
        46°
        7:38AM
        Sunrise
        8AM
        45°
        9AM
        46°
        10AM
        48°
        11AM
        49°
        12PM
        51°
        1PM
        53°
        2PM
        54°
        3PM
        55°
        4PM
        56°
        5PM
        55°
        Precipitation
        9%
        Pollen
        Ragweed Pollen
        Low
        Air Quality
        70
        Moderate
        UV Index
        0
        Low
        Additional Conditions
        1. Pressure 29.87 in
        2. Visibility 10 miles
        3. Clouds Mostly Cloudy
        4. Dew Point46°F
        5. Humidity 59%
        6. Rainfall 0 in
        7. Snow Depth 0 in
         KSEA Station History
        Almanac for October 21, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 65°F 59°F 72°F 1965
        4. Low 41°F 46°F 32°F 1949
        5. Rain/Snow Depth
        6. Precipitation 0 in 3.9 in -
        7. Snow 0 in 0 in -
        Almanac for October 22, 2026
        1. Forecast Average Record
        2. Temperature
        3. High 57°F 58°F 70°F
        4. Low 44°F 46°F 34°F
        Astronomy
        1. Sun Rise Set
        2. Actual Time 7:36 AM 6:10 PM
        3. Civil Twilight 7:05 AM 6:41 PM
        4. Nautical Twilight 6:29 AM 7:16PM
        5. Astronomical Twilight 5:54 AM 7:52 PM
        1. Length of Visible Light 11h 35m
        2. Length of Day 10h 33m
        3. Tomorrow will be 3 minutes 13 seconds shorter
        1. Moon 4:15 PM 2:17 AM
        2. Waxing Gibbous80% of the Moon is Illuminated
        Oct 25
        Full Moon
        Nov 1
        Waning Half Last Qtr
        Nov 8
        New Moon
        Nov 17
        Waxing Half First Qtr
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