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.

Overcast

54°F

12°C

Humidity 87%
Wind Speed S 3 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 20 Mar 04:20 AM PDT
Extended Forecast for

Vashon WA

Flood Watch March 20, 04:38am until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 04:38am until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • Overnight

    Low: 52 °F

    Rain Likely

  • Friday

    Friday: Rain, mainly before 2pm.  High near 55. South southwest wind 11 to 15 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 55 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain before 2am, then a slight chance of showers after 4am.  Mostly cloudy, with a low around 41. Southwest wind 6 to 11 mph becoming east northeast in the evening.  Chance of precipitation is 30%.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 11am.  Partly sunny, with a high near 48. North wind around 6 mph becoming east in the afternoon.

    High: 48 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 11pm.  Partly cloudy, with a low around 37. East northeast wind around 9 mph becoming south southwest in the evening.

    Low: 37 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of rain.  Partly sunny, with a high near 50.

    High: 50 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 51.

    High: 51 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain likely. Cloudy, with a low around 52. South southwest wind around 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly before 2pm. High near 55. South southwest wind 11 to 15 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of rain before 2am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 41. Southwest wind 6 to 11 mph becoming east northeast in the evening. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 48. North wind around 6 mph becoming east in the afternoon.
Saturday Night
A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 37. East northeast wind around 9 mph becoming south southwest in the evening.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 50.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 51.
Monday Night
A 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. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 36.
Thursday
A chance of rain. Partly sunny, with a high near 51.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Vashon WA
 47.44°N 122.46°W (Elev. 387 ft)
1:53 am PDT Mar 20, 2026
4am PDT Mar 20, 2026-6pm PDT Mar 26, 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