National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Tri-Cities Airport (KPSC)

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

Overcast

57°F

14°C

Humidity 67%
Wind Speed SW 19 MPH
Barometer 29.68 in (1005.08 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Apr 10:00 PM PDT
Extended Forecast for

Prosser WA

Wind Advisory April 22, 05:00am until April 22, 11:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Rain, mainly after 11pm. Low around 47. West wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Wednesday

    Wednesday: Rain, mainly before 2pm. High near 60. West wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 60 °F

    Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 39. West wind 9 to 17 mph, with gusts as high as 30 mph.

    Low: 39 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of rain before 11am. Mostly sunny, with a high near 64. West wind around 9 mph.

    High: 64 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Northwest wind 6 to 9 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 11pm. Low around 47. West wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain, mainly before 2pm. High near 60. West wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 39. West wind 9 to 17 mph, with gusts as high as 30 mph.
Thursday
A 20 percent chance of rain before 11am. Mostly sunny, with a high near 64. West wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 41. Northwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.2°N 119.78°W (Elev. 646 ft)
Last Update:
8:52 pm PDT Apr 21, 2026
Forecast Valid:
10pm PDT Apr 21, 2026-6pm PDT Apr 28, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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