National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 >

Hazardous Weather Conditions

Current conditions at

Boeing Field - King County International Airport (KBFI)

Lat: 47.54548°NLon: 122.3147°WElev: 20.0ft.

rain,mist

54°F

12°C

Humidity 93%
Wind Speed SW 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 52°F (11°C)
Visibility 3.50 mi
Last update 20 Mar 06:15 AM PDT
Extended Forecast for

2 Miles SE South Seattle WA

Flood Watch March 20, 06:40am until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 06:40am until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • Today

    High: 57 °F

    Rain

  • Tonight

    Tonight: A chance of rain before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 41. Southwest wind 5 to 8 mph becoming northeast after midnight. Chance of precipitation is 40%.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 51. Northeast wind 3 to 5 mph.

    High: 51 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Partly cloudy, with a low around 38. North northeast wind 5 to 7 mph becoming south in the evening.

    Low: 38 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before 11am. Partly sunny, with a high near 53. South wind 5 to 7 mph.

    High: 53 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

Detailed Forecast

Today
Rain, mainly before 2pm. High near 57. South southwest wind 8 to 13 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A chance of rain before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 41. Southwest wind 5 to 8 mph becoming northeast after midnight. Chance of precipitation is 40%.
Saturday
A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 51. Northeast wind 3 to 5 mph.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 38. North northeast wind 5 to 7 mph becoming south in the evening.
Sunday
A 30 percent chance of rain, mainly before 11am. Partly sunny, with a high near 53. South wind 5 to 7 mph.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly cloudy, with a high near 54.
Monday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 43.
Tuesday
Rain. Cloudy, with a high near 54.
Tuesday Night
Rain. Mostly cloudy, with a low around 41.
Wednesday
Rain likely. Mostly cloudy, with a high near 52.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 37.
Thursday
A slight chance of rain. Partly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE South Seattle WA
 47.53°N 122.26°W (Elev. 7 ft)
Last Update:
1:53 am PDT Mar 20, 2026
Forecast Valid:
6am PDT Mar 20, 2026-6pm PDT Mar 26, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation