Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Seattle, Seattle-Tacoma International Airport (KSEA)

Lat: 47.44472°NLon: 122.31361°WElev: 427.0ft.

Mostly Cloudy

54°F

12°C

Humidity 66%
Wind Speed SW 5 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Mar 07:35 PM PDT
Extended Forecast for

Vashon WA

Flood Watch March 20, 07:48pm until March 21, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 07:48pm until March 21, 05:00pm

    NOW until 5:00pm Sat

    Flood Watch

  • Tonight

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain between 7am and 8am.  Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind around 6 mph.  Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm, then a slight chance of rain and snow.  Partly cloudy, with a low around 37. Northeast wind 6 to 8 mph becoming south southwest in the evening.  Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 11am, then a slight chance of rain.  Partly sunny, with a high near 51. South wind around 8 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. North northeast wind around 7 mph.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain after 11pm.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  Cloudy, with a high near 51.

    High: 51 °F

    Rain

Detailed Forecast

Tonight
A 40 percent chance of rain, mainly between midnight and 2am. Mostly cloudy, with a low around 41. Southwest wind 7 to 13 mph becoming northeast after midnight.
Saturday
A slight chance of rain between 7am and 8am. Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind around 6 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of rain before 11pm, then a slight chance of rain and snow. Partly cloudy, with a low around 37. Northeast wind 6 to 8 mph becoming south southwest in the evening. Chance of precipitation is 20%.
Sunday
A chance of rain and snow before 11am, then a slight chance of rain. Partly sunny, with a high near 51. South wind around 8 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 39. North northeast wind around 7 mph.
Monday
Mostly cloudy, with a high near 51.
Monday Night
A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain. Cloudy, with a high near 51.
Tuesday Night
Rain. Cloudy, with a low around 41.
Wednesday
Rain. Cloudy, with a high near 49.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 36.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 54.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Vashon WA
 47.46°N 122.47°W (Elev. 381 ft)
11:27 am PDT Mar 20, 2026
7pm PDT Mar 20, 2026-6pm PDT Mar 27, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database