Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

54°F

12°C

Humidity 39%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 17 Apr 10:53 AM PDT
Extended Forecast for

Prosser WA

  • Today

    Today: Increasing clouds, with a high near 61. Light and variable wind.

    High: 61 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Light northeast wind.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 71 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. Northeast wind around 6 mph becoming north after midnight.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 76. Northeast wind 5 to 7 mph.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 61. Light and variable wind.
Tonight
Mostly cloudy, with a low around 41. Light northeast wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 43. Northeast wind around 6 mph becoming north after midnight.
Sunday
Partly sunny, with a high near 76. Northeast wind 5 to 7 mph.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 66.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 43.
Thursday
A slight chance of rain. Mostly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.2°N 119.78°W (Elev. 646 ft)
10:57 am PDT Apr 17, 2026
11am PDT Apr 17, 2026-6pm PDT Apr 23, 2026
 
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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