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

S144TH TUKWILA (T144T)

Lat: 47.4748°NLon: 122.2704°WElev: 165.0ft.

NA

N/A

Humidity 99%
Wind Speed S 0 MPH
Barometer NA
Dewpoint N/A
Visibility 1.10 mi
Last update 05 Mar 07:45 AM PST
Extended Forecast for

Tukwila WA

Flood Warning March 21, 02:01pm until March 21, 11:00pm
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning March 21, 02:01pm until March 21, 11:00pm

    NOW until 11:00pm Sat

    Flood Warning

  • This Afternoon

    High: 51 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Southeast wind 3 to 6 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of rain and snow before 11am. Partly sunny, with a high near 53. South wind around 5 mph becoming light and variable. Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. North northeast wind 3 to 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 53. Calm wind becoming north around 6 mph in the afternoon.

    High: 53 °F

    Partly Sunny

  • 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. High near 55. Chance of precipitation is 100%.

    High: 55 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 51. Light west northwest wind.
Tonight
Mostly clear, with a low around 38. Southeast wind 3 to 6 mph.
Sunday
A slight chance of rain and snow before 11am. Partly sunny, with a high near 53. South wind around 5 mph becoming light and variable. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 38. North northeast wind 3 to 5 mph.
Monday
Partly sunny, with a high near 53. Calm wind becoming north around 6 mph in the afternoon.
Monday Night
A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain. High near 55. Chance of precipitation is 100%.
Tuesday Night
Rain, mainly before 11pm. Mostly cloudy, with a low around 41.
Wednesday
Rain. Mostly cloudy, with a high near 53.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 39.
Thursday
A chance of rain. Partly sunny, with a high near 54.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Tukwila WA
 47.47°N 122.25°W (Elev. 197 ft)
Last Update:
11:25 am PDT Mar 21, 2026
Forecast Valid:
2pm PDT Mar 21, 2026-6pm PDT Mar 27, 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