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 >

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

45°F

7°C

Humidity 48%
Wind Speed W 10 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 22 Mar 12:35 AM PDT
Extended Forecast for

3 Miles WSW Wallula WA

  • Overnight

    Overnight: Mostly clear, with a low around 40. South wind around 9 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56. South wind 6 to 9 mph becoming west in the afternoon.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. North wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 60. Northwest wind 3 to 6 mph.

    High: 60 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Cloudy, with a low around 51. Light and variable wind becoming south around 6 mph after midnight.

    Low: 51 °F

    Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain. Mostly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 39. Breezy.

    Low: 39 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 40. South wind around 9 mph.
Sunday
Sunny, with a high near 56. South wind 6 to 9 mph becoming west in the afternoon.
Sunday Night
Mostly cloudy, with a low around 43. North wind around 5 mph becoming calm in the evening.
Monday
Increasing clouds, with a high near 60. Northwest wind 3 to 6 mph.
Monday Night
Cloudy, with a low around 51. Light and variable wind becoming south around 6 mph after midnight.
Tuesday
Rain likely, mainly after 11am. Cloudy, with a high near 59. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 59.
Wednesday Night
Mostly clear, with a low around 39. Breezy.
Thursday
Sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Wallula WA
 46.07°N 118.94°W (Elev. 338 ft)
Last Update:
11:02 pm PDT Mar 21, 2026
Forecast Valid:
12am PDT Mar 22, 2026-6pm PDT Mar 28, 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