Showers and Thunderstorms from the Southern Plains into the Mid-Mississippi Valley; Record Warmth in the Plains and Midwest

Heavy rain and widely scattered severe storms capable of large hail, damaging winds, and possibly a tornado are expected over portions of the central and southern Plains into the Lower Missouri Valley. Unseasonable warmth will continue for a few more days across the Midwest and Southeast 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

50°F

10°C

Humidity 50%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 13 Oct 10:35 AM PDT
Extended Forecast for

Prosser WA

  • Today

    Today: Areas of frost before 11am.  Otherwise, sunny, with a high near 66. Calm wind.

    High: 66 °F

    Areas Frost
    then Sunny

  • Tonight

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

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 71. Calm wind.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of frost before 11am. Otherwise, sunny, with a high near 66. Calm wind.
Tonight
Mostly cloudy, with a low around 41. Calm wind.
Wednesday
Sunny, with a high near 71. Calm wind.
Wednesday Night
Mostly clear, with a low around 43. Calm wind.
Thursday
Sunny, with a high near 72. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 43.
Friday
Sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A slight chance of showers. Partly sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
10:46 am PDT Oct 13, 2026
10am PDT Oct 13, 2026-6pm PDT Oct 19, 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