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.

Rain

14°C

57°F

Humidity 89%
Wind Speed WSW 21 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 12°C (54°F)
Visibility 16 km
Last update 12 Sep 10:53 PM PDT
Extended Forecast for

Richland WA

  • Tonight

    Tonight: Showers. Low around 13. Southwest wind 24 to 29 km/h decreasing to 18 to 23 km/h after midnight. Winds could gust as high as 50 km/h. Chance of precipitation is 100%. New precipitation amounts between 2.5 and 5 mm possible.

    Low: 13 °C

    Showers

  • Sunday

    Sunday: Showers likely, mainly between 11am and 5pm. Mostly cloudy, with a high near 17. Southwest wind 18 to 24 km/h, with gusts as high as 42 km/h. Chance of precipitation is 70%. New precipitation amounts between 2.5 and 5 mm possible.

    High: 17 °C

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 10. Southwest wind 11 to 18 km/h, with gusts as high as 35 km/h.

    Low: 10 °C

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 23. Southwest wind around 11 km/h.

    High: 23 °C

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 10. Calm wind.

    Low: 10 °C

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 22.

    High: 22 °C

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11.

    Low: 11 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 25.

    High: 25 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 11.

    Low: 11 °C

    Clear

Detailed Forecast

Tonight
Showers. Low around 13. Southwest wind 24 to 29 km/h decreasing to 18 to 23 km/h after midnight. Winds could gust as high as 50 km/h. Chance of precipitation is 100%. New precipitation amounts between 2.5 and 5 mm possible.
Sunday
Showers likely, mainly between 11am and 5pm. Mostly cloudy, with a high near 17. Southwest wind 18 to 24 km/h, with gusts as high as 42 km/h. Chance of precipitation is 70%. New precipitation amounts between 2.5 and 5 mm possible.
Sunday Night
A 30 percent chance of showers, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 10. Southwest wind 11 to 18 km/h, with gusts as high as 35 km/h.
Monday
Sunny, with a high near 23. Southwest wind around 11 km/h.
Monday Night
Partly cloudy, with a low around 10. Calm wind.
Tuesday
Partly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 11.
Wednesday
Sunny, with a high near 25.
Wednesday Night
Clear, with a low around 11.
Thursday
Sunny, with a high near 27.
Thursday Night
Clear, with a low around 12.
Friday
Sunny, with a high near 28.
Friday Night
Mostly clear, with a low around 13.
Saturday
Sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Richland WA
 46.29°N 119.28°W (Elev. 361 m)
Last Update:
9:12 pm PDT Sep 12, 2026
Forecast Valid:
11pm PDT Sep 12, 2026-6pm PDT Sep 19, 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