Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

43°F

6°C

Humidity 100%
Wind Speed ENE 4 MPH
Barometer 29.69 in (1005.42 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 21 Apr 04:35 AM PDT
Extended Forecast for

Prosser WA

  • Today

    Today: A 30 percent chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 77. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 77 °F

    Partly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then rain likely after 8pm.  Cloudy, with a low around 48. West wind 11 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Chance
    Showers then
    Rain Likely

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 63. West wind 14 to 18 mph, with gusts as high as 26 mph.  Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42. West wind 9 to 18 mph, with gusts as high as 28 mph.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of rain before 11am.  Mostly sunny, with a high near 66. Northwest wind around 8 mph.

    High: 66 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

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

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 77. Southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Tonight
A chance of showers and thunderstorms, then rain likely after 8pm. Cloudy, with a low around 48. West wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 63. West wind 14 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Partly cloudy, with a low around 42. West wind 9 to 18 mph, with gusts as high as 28 mph.
Thursday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 66. Northwest wind around 8 mph.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Sunny, with a high near 65.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 71.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
4:00 am PDT Apr 21, 2026
4am PDT Apr 21, 2026-6pm PDT Apr 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database