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

54°F

12°C

Humidity 58%
Wind Speed E 4 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Mar 03:20 AM PDT
Extended Forecast for

Kennewick WA

  • Overnight

    Overnight: Mostly clear early, then becoming mostly cloudy, with a steady temperature around 56. Southwest wind around 7 mph.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 73. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 73 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 73. South wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 73 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53. South wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 71.

    High: 71 °F

    Mostly Cloudy

  • Friday Night

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

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear early, then becoming mostly cloudy, with a steady temperature around 56. Southwest wind around 7 mph.
Wednesday
Mostly cloudy, with a high near 73. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly cloudy, with a low around 54. Southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Thursday
Mostly cloudy, with a high near 73. South wind 6 to 13 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 53. South wind 6 to 10 mph, with gusts as high as 18 mph.
Friday
Mostly cloudy, with a high near 71.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly cloudy, with a high near 58.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kennewick WA
 46.22°N 119.16°W (Elev. 446 ft)
Last Update:
3:31 am PDT Mar 18, 2026
Forecast Valid:
3am PDT Mar 18, 2026-6pm PDT Mar 24, 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