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

Tri-Cities Airport (KPSC)

Lat: 46.26955°NLon: 119.11813°WElev: 397.0ft.

Clear

61°F

16°C

Humidity 51%
Wind Speed SSW 16 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Mar 06:35 AM PDT
Extended Forecast for

Wallula WA

  • Today

    Today: Increasing clouds, with a high near 71. South wind 11 to 18 mph, with gusts as high as 25 mph.

    High: 71 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A 40 percent chance of rain after 2am. Cloudy, with a low around 52. West wind 11 to 16 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Cloudy then
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 60. Southwest wind 11 to 14 mph, with gusts as high as 18 mph.

    High: 60 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. West wind 8 to 15 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57. West wind 8 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain. Cloudy, with a high near 62.

    High: 62 °F

    Chance Rain

Detailed Forecast

Today
Increasing clouds, with a high near 71. South wind 11 to 18 mph, with gusts as high as 25 mph.
Tonight
A 40 percent chance of rain after 2am. Cloudy, with a low around 52. West wind 11 to 16 mph, with gusts as high as 24 mph.
Saturday
A 30 percent chance of rain before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 60. Southwest wind 11 to 14 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 39. West wind 8 to 15 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 57. West wind 8 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly cloudy, with a high near 58.
Monday Night
Mostly cloudy, with a low around 47.
Tuesday
A 40 percent chance of rain. Cloudy, with a high near 62.
Tuesday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Wednesday
A slight chance of rain. Partly sunny, with a high near 57.
Wednesday Night
Partly cloudy, with a low around 39.
Thursday
Sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wallula WA
 46.07°N 118.91°W (Elev. 338 ft)
Last Update:
4:20 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