Showers and Thunderstorms from the Southern Plains into the Ohio Valley; Record Warmth in the Central U.S.

Heavy rain and widely scattered severe storms are expected over portions of the central and southern Plains into the Ohio Valley. Unseasonable warmth will continue for a few more days across the Midwest, Southeast, and Mid-Atlantic where several daily record highs could fall. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

Lat: 46.3271°NLon: 119.9704°WElev: 768.0ft.

Clear

42°F

6°C

Humidity 90%
Wind Speed N 0 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 15 Oct 01:15 AM PDT
Extended Forecast for

Prosser WA

  • Overnight

    Overnight: Clear, with a low around 41. Calm wind.

    Low: 41 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 71. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Thursday Night

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

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 71. Calm wind.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 41. Calm wind.
Thursday
Sunny, with a high near 71. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 41. Calm wind.
Friday
Mostly sunny, with a high near 71. Calm wind.
Friday Night
Partly cloudy, with a low around 41. Calm wind.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 64.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.23°N 119.76°W (Elev. 712 ft)
11:46 pm PDT Oct 14, 2026
2am PDT Oct 15, 2026-6pm PDT Oct 21, 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