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.

Overcast

51°F

11°C

Humidity 73%
Wind Speed SSE 13 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 21 Mar 09:53 AM PDT
Extended Forecast for

Pasco WA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 66. West wind 7 to 10 mph.

    High: 66 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming light and variable after midnight.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 60. Calm wind becoming south around 6 mph in the afternoon.

    High: 60 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. Southeast wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 64.

    High: 64 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 66. West wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming light and variable after midnight.
Sunday
Increasing clouds, with a high near 60. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 34. Southeast wind around 5 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 62. Calm wind.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Tuesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pasco WA
 46.26°N 119.11°W (Elev. 400 ft)
Last Update:
9:42 am PDT Mar 21, 2026
Forecast Valid:
10am 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