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

46°F

8°C

Humidity 43%
Wind Speed NW 18 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 21 Mar 10:53 PM PDT
Extended Forecast for

3 Miles SE Richland WA

  • Tonight

    Tonight: Patchy frost after 5am. Otherwise, clear, with a low around 36. Southwest wind 3 to 6 mph.

    Low: 36 °F

    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 8am. Otherwise, increasing clouds, with a high near 60. Southeast wind 3 to 5 mph.

    High: 60 °F

    Patchy Frost
    then
    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 63. Calm wind.

    High: 63 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Cloudy, with a low around 48. Light south wind.

    Low: 48 °F

    Cloudy

  • Tuesday

    Tuesday: Rain likely. Cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy frost after 5am. Otherwise, clear, with a low around 36. Southwest wind 3 to 6 mph.
Sunday
Patchy frost before 8am. Otherwise, increasing clouds, with a high near 60. Southeast wind 3 to 5 mph.
Sunday Night
Mostly cloudy, with a low around 39. Light and variable wind.
Monday
Increasing clouds, with a high near 63. Calm wind.
Monday Night
Cloudy, with a low around 48. Light south wind.
Tuesday
Rain likely. Cloudy, with a high near 62. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 44.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 37.
Thursday
Sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 38.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Richland WA
 46.27°N 119.24°W (Elev. 400 ft)
Last Update:
10:15 pm PDT Mar 21, 2026
Forecast Valid:
11pm PDT Mar 21, 2026-6pm PDT Mar 28, 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