SeaTac, Washington | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    45°
    Sunday 5/19
    Forecast night icon
    45°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Low temperature around 45F. Dew point will be around 42F with an average humidity of 63%. Winds will be 6 mph from the NW.
  • Forecast day icon
    Monday
    Mostly Sunny
    64°
    Forecast night icon
    Night
    Chance of Rain
    47°
    Monday 5/20
    Day
    64°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Chance of Rain
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the 60s. Light wind.
    Night Details
    Mostly cloudy until early morning then a slight chance of rain in the morning. Lows in the mid 40s to lower 50s. West wind to 10 mph becoming south after midnight.
  • Forecast day icon
    Tuesday
    Rain
    53°
    Forecast night icon
    Night
    Chance of Rain Showers
    46°
    Tuesday 5/21
    Day
    53°
    Rain
    Forecast day icon
    Night
    46°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Rain. Rainfall amounts a half inch to one inch possible. Highs in the 50s. South wind 10 to 15 mph.
    Night Details
    Cloudy with showers likely in the evening then mostly cloudy with a chance of showers after midnight. Rainfall amounts a quarter to a half inch possible. Lows in the mid to upper 40s. South wind 10 to 15 mph with gusts to 25 mph.
  • Forecast day icon
    Wednesday
    Chance of Rain Showers
    56°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Wednesday 5/22
    Day
    56°
    Chance of Rain Showers
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers in the morning then a slight chance of showers in the afternoon. Highs in the mid 50s to lower 60s. Southwest wind 10 to 15 mph in the morning becoming light.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the upper 40s.
  • Forecast day icon
    Thursday
    Partly Sunny
    64°
    Forecast night icon
    Night
    Chance of Rain Showers
    50°
    Thursday 5/23
    Day
    64°
    Partly Sunny
    Forecast day icon
    Night
    50°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid to upper 60s.
    Night Details
    Mostly cloudy. A slight chance of showers after midnight. Lows near 50.
  • Forecast day icon
    Friday
    Chance of Rain Showers
    56°
    Forecast night icon
    Night
    Chance of Rain Showers
    46°
    Friday 5/24
    Day
    56°
    Chance of Rain Showers
    Forecast day icon
    Night
    46°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a chance of showers. Highs in the lower 60s.
    Night Details
    Mostly cloudy. A chance of showers in the evening then a slight chance of showers after midnight. Lows in the mid to upper 40s.
  • Forecast day icon
    Saturday
    Chance of Rain Showers
    57°
    Forecast night icon
    Night
    Chance of Rain Showers
    47°
    Saturday 5/25
    Day
    57°
    Chance of Rain Showers
    Forecast day icon
    Night
    47°
    Chance of Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A slight chance of showers in the morning then a chance of showers in the afternoon. Highs near 60.
    Night Details
    Mostly cloudy with a slight chance of showers. Lows in the mid to upper 40s.
  • Forecast day icon
    Sunday
    Chance of Rain Showers
    59°
    Forecast night icon
    Night
    Partly Cloudy
    49°
    Sunday 5/26
    Day
    59°
    Chance of Rain Showers
    Forecast day icon
    Night
    49°
    Partly Cloudy
    Forecast night icon
    Day Details
    Partly sunny with a slight chance of showers. Highs in the lower to mid 60s.
    Night Details
    Partly cloudy. Low temperature around 49F. Dew point will be around 44F with an average humidity of 70%. Winds will be 7 mph from the S.
  • Forecast day icon
    Monday
    Mostly Sunny
    71°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Monday 5/27
    Day
    71°
    Mostly Sunny
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 71F. Dew point will be around 45F with an average humidity of 50%. Winds will be 6 mph from the SW.
    Night Details
    Partly cloudy. Low temperature around 52F. Dew point will be around 46F with an average humidity of 66%. Winds will be 6 mph from the S.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    75°
    Forecast night icon
    Night
    30% Chance of Rain
    54°
    Tuesday 5/28
    Day
    75°
    Partly Cloudy
    Forecast day icon
    Night
    54°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. High temperature around 75F. Dew point will be around 47F with an average humidity of 48%. Winds will be 7 mph from the SW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 54F. Dew point will be around 48F with an average humidity of 64%. Winds will be 7 mph from the S.
  • Forecast day icon
    Wednesday
    40% Chance of Rain
    69°
    Forecast night icon
    Night
    40% Chance of Rain
    52°
    Wednesday 5/29
    Day
    69°
    40% Chance of Rain
    Forecast day icon
    Night
    52°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 69F. Dew point will be around 49F with an average humidity of 56%. Winds will be 8 mph from the SW.
    Night Details
    Mostly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 52F. Dew point will be around 48F with an average humidity of 71%. Winds will be 8 mph from the S.