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

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

Lat: 47.68528°NLon: 122.25111°WElev: 29.0ft.

NA

47°F

8°C

Humidity 80%
Wind Speed NNE 5 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 21 Mar 12:30 AM PDT
Extended Forecast for

Seattle-Ballard WA

Flood Watch March 21, 01:45am until March 21, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 21, 01:45am until March 21, 05:00pm

    NOW until 5:00pm Sat

    Flood Watch

  • Overnight

    Low: 44 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain between 1pm and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 5 to 10 mph.

    High: 49 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A slight chance of rain between 1am and 4am. Partly cloudy, with a low around 39. North northeast wind 5 to 9 mph becoming south after midnight. Chance of precipitation is 20%.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • 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 6 to 8 mph becoming north northwest in the afternoon. 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 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 53.

    High: 53 °F

    Rain

Detailed Forecast

Overnight
A 20 percent chance of rain before 2am. Cloudy, with a steady temperature around 44. North wind 9 to 11 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of rain between 1pm and 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 49. North wind 5 to 10 mph.
Saturday Night
A slight chance of rain between 1am and 4am. Partly cloudy, with a low around 39. North northeast wind 5 to 9 mph becoming south after midnight. 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 6 to 8 mph becoming north northwest in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 39. North 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 53.
Tuesday Night
Rain. Mostly cloudy, with a low around 42. Breezy.
Wednesday
Rain. Cloudy, with a high near 52.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 39.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Thursday Night
A chance of rain. Partly cloudy, with a low around 39.
Friday
A slight chance of rain. Partly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seattle-Ballard WA
 47.66°N 122.4°W (Elev. 52 ft)
Last Update:
11:27 pm PDT Mar 20, 2026
Forecast Valid:
1am 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