National Weather Service

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Discontinuation of the Max/Min Temperature and Precipitation Table Product (RTP/OSO) for all NWS Western Region Offices Effect July 7, 2026

Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

84°F

29°C

Humidity	17%
Wind Speed	WNW 6 MPH
Barometer	29.54 in (1000.34 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	25 May 04:15 PM PDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Kennewick WA

Memorial Day
High: 82 °F
Mostly Cloudy
Tonight
Low: 49 °F
Showers
Likely
Tuesday
High: 67 °F
Slight Chance
Showers then
Mostly Cloudy
Tuesday Night
Low: 50 °F
Chance
Showers
Wednesday
High: 81 °F
Mostly Sunny
Wednesday Night
Low: 55 °F
Partly Cloudy
Thursday
High: 88 °F
Slight Chance
Showers
Thursday Night
Low: 56 °F
Chance
Showers
Friday
High: 77 °F
Chance
Showers

Detailed Forecast

Memorial Day

Mostly cloudy, with a steady temperature around 82. West wind around 16 mph, with gusts as high as 24 mph.

Tonight

Showers likely, mainly between 8pm and 2am. Cloudy, with a low around 49. West wind 10 to 20 mph becoming south after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

A 20 percent chance of showers before 8am. Cloudy, with a high near 67. South wind 5 to 8 mph becoming east in the afternoon.

Tuesday Night

A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 50. South wind around 5 mph.

Wednesday

Mostly sunny, with a high near 81. South wind around 5 mph becoming light and variable.

Wednesday Night

Partly cloudy, with a low around 55.

Thursday

A 20 percent chance of showers after 11am. Mostly sunny, with a high near 88.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.