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.

Partly Cloudy

66°F

19°C

Humidity 45%
Wind Speed SW 20 MPH
Barometer 29.62 in (1003.05 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 21 Apr 05:55 PM PDT
Extended Forecast for

4 Miles S Richland WA

  • Tonight

    Tonight: Rain, mainly after 11pm. Low around 50. Southwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 50 °F

    Rain

  • Wednesday

    Wednesday: Rain. High near 59. Breezy, with a west wind 18 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 59 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 44. Southwest wind 14 to 20 mph, with gusts as high as 31 mph.

    Low: 44 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain. Mostly sunny, with a high near 63. West wind around 10 mph.

    High: 63 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. West wind 7 to 9 mph becoming northwest after midnight.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 11pm. Low around 50. Southwest wind 15 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. High near 59. Breezy, with a west wind 18 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 44. Southwest wind 14 to 20 mph, with gusts as high as 31 mph.
Thursday
A 20 percent chance of rain. Mostly sunny, with a high near 63. West wind around 10 mph.
Thursday Night
Partly cloudy, with a low around 43. West wind 7 to 9 mph becoming northwest after midnight.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 73.
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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 21, 2026
Forecast Valid:
6pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

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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