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      Elev 139 ft, 47.446 °N 122.276 °W

      SeaTac, WA

      Tue, Oct 20, 2026
      Today
      Wed 10/21
      High 61°f
      1% Precip. / 0 in
      Sunny. High 61F. Winds N at 10 to 15 mph.
      Tonight
      Wed 10/21
      Low 43°f
      20% Precip. / 0 in
      Clear skies. Low 43F. Winds NNE at 5 to 10 mph.
      Sunrise 7:35 AM
      Sunset 6:11 PM
      Moonrise 3:58 PM
      Moonset 1:06 AM
      Waxing Gibbous, 71% visible
      Hourly Forecast
      Now
      57°
      2PM
      59°
      3PM
      60°
      4PM
      61°
      5PM
      59°
      6PM
      57°
      6:11PM
      Sunset
      7PM
      54°
      8PM
      53°
      9PM
      52°
      10PM
      51°
      11PM
      50°
      12AM
      49°
      1AM
      48°
      2AM
      47°
      3AM
      46°
      4AM
      46°
      5AM
      45°
      6AM
      44°
      7AM
      44°
      7:36AM
      Sunrise
      8AM
      44°
      9AM
      46°
      10AM
      50°
      11AM
      53°
      12PM
      57°
      1PM
      59°
      Time Conditions Temp. Feels Like Precip Amount Cloud Cover Dew Point Humidity Wind Pressure
      2:00 pm
      Mostly Sunny
      59°F 58°F 0% 0in 22% 45°F 58% 10 mph N 30.04in
      3:00 pm
      Sunny
      60°F 59°F 0% 0in 18% 44°F 55% 10 mph N 30.04in
      4:00 pm
      Sunny
      61°F 59°F 0% 0in 15% 44°F 54% 10 mph N 30.03in
      5:00 pm
      Sunny
      59°F 58°F 1% 0in 3% 43°F 55% 9 mph N 30.02in
      6:00 pm
      Sunny
      57°F 55°F 1% 0in 3% 44°F 61% 8 mph N 30.02in
      7:00 pm
      Clear
      54°F 53°F 1% 0in 3% 43°F 66% 7 mph N 30.03in
      8:00 pm
      Clear
      53°F 51°F 2% 0in 0% 43°F 70% 6 mph N 30.03in
      9:00 pm
      Clear
      52°F 50°F 4% 0in 0% 43°F 71% 7 mph NNE 30.03in
      10:00 pm
      Clear
      51°F 49°F 4% 0in 0% 43°F 73% 7 mph NNE 30.02in
      11:00 pm
      Clear
      50°F 48°F 5% 0in 3% 43°F 77% 6 mph NNE 30.01in
      Additional Conditions
      1. Pressure 30.12 in
      2. Visibility 10 miles
      3. Clouds Partly Cloudy
      4. Dew Point45°F
      5. Humidity 63%
      6. Rainfall 0 in
      7. Snow Depth 0 in
      KSEA Station History
      Almanac for October 20, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 61°F 59°F 69°F 1987
      4. Low 46°F 46°F 29°F 1949
      5. Rain/Snow Depth
      6. Precipitation 0 in 3.8 in -
      7. Snow 0 in 0 in -
      Almanac for October 21, 2026
      1. Forecast Average Record
      2. Temperature
      3. High 65°F 59°F 72°F
      4. Low 43°F 46°F 32°F
      Astronomy
      1. Sun Rise Set
      2. Actual Time 7:35 AM 6:11 PM
      3. Civil Twilight 7:04 AM 6:42 PM
      4. Nautical Twilight 6:28 AM 7:18PM
      5. Astronomical Twilight 5:52 AM 7:54 PM
      1. Length of Visible Light 11h 38m
      2. Length of Day 10h 36m
      3. Tomorrow will be 3 minutes 15 seconds shorter
      1. Moon 3:58 PM 1:06 AM
      2. Waxing Gibbous71% 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
      Nearby Weather Stations
      Station Location
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      Windchill
      Heat Index
      Dew Point
      Humidity
      Wind
      Precip.
      Elev.
      Updated
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      Level Access
      Glossary