National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

48°F

9°C

Humidity 87%
Wind Speed E 3 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 22 May 02:00 AM PDT
Extended Forecast for

Kennewick WA

  • Overnight

    Overnight: Mostly clear, with a low around 53. Light south wind.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57. East wind around 5 mph becoming calm after midnight.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: A 20 percent chance of showers after 11am. Partly sunny, with a high near 79.

    High: 79 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 53. Light south wind.
Friday
Sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 57. East wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 57. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Mostly cloudy, with a low around 58.
Memorial Day
A 20 percent chance of showers after 11am. Partly sunny, with a high near 79.
Monday Night
A 30 percent chance of showers before 11pm. Mostly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 69.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 49.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 69.
Wednesday Night
A slight chance of showers. Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kennewick WA
 46.19°N 119.16°W (Elev. 505 ft)
Last Update:
11:46 pm PDT May 21, 2026
Forecast Valid:
2am PDT May 22, 2026-6pm PDT May 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