Current conditions at

Tri-Cities Airport (KPSC)

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

Clear

54°F

12°C

Humidity 66%
Wind Speed E 5 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 19 Apr 11:20 PM PDT
Extended Forecast for

Prosser WA

  • Tonight

    Tonight: Partly cloudy, with a low around 47. West wind around 6 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 80. West wind around 5 mph becoming light and variable.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 50. Northeast wind around 6 mph becoming southwest after midnight.

    Low: 50 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 76. Southwest wind 5 to 10 mph.

    High: 76 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 48. West wind around 11 mph, with gusts as high as 18 mph.  New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight 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
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 47. West wind around 6 mph.
Monday
Partly sunny, with a high near 80. West wind around 5 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 50. Northeast wind around 6 mph becoming southwest after midnight.
Tuesday
Partly sunny, with a high near 76. Southwest wind 5 to 10 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 48. West wind around 11 mph, with gusts as high as 18 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 42.
Thursday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
11:31 pm PDT Apr 19, 2026
11pm PDT Apr 19, 2026-6pm PDT Apr 26, 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