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

75°F

24°C

Humidity 33%
Wind Speed NNW 4 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 20 Apr 04:00 PM PDT
Extended Forecast for

4 Miles S Richland WA

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. Light and variable wind becoming southwest around 5 mph after midnight.

    Low: 52 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 11pm. Mostly cloudy, with a low around 50. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 62. Southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 45. Southwest wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 45 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. Light and variable wind becoming southwest around 5 mph after midnight.
Tuesday
Partly sunny, with a high near 78. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 50. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely. Mostly cloudy, with a high near 62. Southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A 30 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 45. Southwest wind 13 to 18 mph, with gusts as high as 30 mph.
Thursday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Richland WA
 46.24°N 119.3°W (Elev. 568 ft)
Last Update:
3:01 pm PDT Apr 20, 2026
Forecast Valid:
4pm PDT Apr 20, 2026-6pm PDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation