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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

71°F

22°C

Humidity 25%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 Mar 02:53 PM PDT
Extended Forecast for

Wallula WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 55. South wind around 10 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 70. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 70 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. South wind around 11 mph.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 72. Southwest wind 10 to 17 mph, with gusts as high as 24 mph.

    High: 72 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm. Cloudy, with a low around 51. Southwest wind 14 to 18 mph, with gusts as high as 24 mph.

    Low: 51 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 11am. Partly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Sunday Night

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

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. South wind around 10 mph.
Thursday
Mostly cloudy, with a high near 70. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 57. South wind around 11 mph.
Friday
Mostly cloudy, with a high near 72. Southwest wind 10 to 17 mph, with gusts as high as 24 mph.
Friday Night
A 20 percent chance of rain after 11pm. Cloudy, with a low around 51. Southwest wind 14 to 18 mph, with gusts as high as 24 mph.
Saturday
A 20 percent chance of rain before 11am. Partly sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 57.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Mostly cloudy, with a high near 60.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Mostly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wallula WA
 46.07°N 118.91°W (Elev. 338 ft)
Last Update:
2:30 pm PDT Mar 18, 2026
Forecast Valid:
3pm PDT Mar 18, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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