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

50°F

10°C

Humidity 87%
Wind Speed S 4 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 21 Mar 05:20 AM PDT
Extended Forecast for

West Pasco WA

  • Overnight

    Overnight: A 40 percent chance of rain. Cloudy, with a steady temperature around 52. West wind around 6 mph.

    Low: 52 °F

    Chance Rain

  • Saturday

    Saturday: A 40 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 63. West wind 6 to 9 mph.

    High: 63 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Northwest wind 3 to 8 mph.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60. South wind 3 to 5 mph.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.

    High: 61 °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

Detailed Forecast

Overnight
A 40 percent chance of rain. Cloudy, with a steady temperature around 52. West wind around 6 mph.
Saturday
A 40 percent chance of rain before 8am. Cloudy through mid morning, then gradual clearing, with a high near 63. West wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 36. Northwest wind 3 to 8 mph.
Sunday
Mostly sunny, with a high near 60. South wind 3 to 5 mph.
Sunday Night
Mostly cloudy, with a low around 38. Light and variable wind.
Monday
Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. 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 slight chance of rain before 11am. Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 36.
Friday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Pasco WA
 46.25°N 119.2°W (Elev. 381 ft)
Last Update:
4:20 am PDT Mar 21, 2026
Forecast Valid:
5am 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