Severe Thunderstorms in the Central U.S.; Record Temperatures Likely for Eastern U.S.

Several rounds of severe thunderstorms and heavy rain are forecast from the southern Plains to the Midwest through Friday. Large hail, damaging wind gusts, and tornadoes are possible. A significant warm-up is expected for much of the Eastern U.S. into next week. Several daily record temperature records are likely to be broken. Fire weather concerns will return to the central/southern High Plains. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

37°F

3°C

Humidity 85%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 04 Mar 11:15 PM PST
Extended Forecast for

Prosser WA

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Southwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 56. West wind 11 to 15 mph, with gusts as high as 23 mph.

    High: 56 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of rain after 10pm.  Increasing clouds, with a low around 36. Southwest wind 7 to 10 mph.

    Low: 36 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain after 4pm.  Partly sunny, with a high near 58. Southwest wind 6 to 8 mph.

    High: 58 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 41. Southwest wind around 8 mph.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. Southwest wind around 11 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 56. West wind 11 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A 20 percent chance of rain after 10pm. Increasing clouds, with a low around 36. Southwest wind 7 to 10 mph.
Friday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 58. Southwest wind 6 to 8 mph.
Friday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 41. Southwest wind around 8 mph.
Saturday
Mostly cloudy, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 30.
Tuesday
A slight chance of rain. Snow level rising to 1300 feet in the afternoon. Mostly sunny, with a high near 50.
Tuesday Night
A chance of rain and snow. Snow level 1500 feet. Mostly cloudy, with a low around 32.
Wednesday
A chance of rain and snow. Snow level 1500 feet rising to 2800 feet in the afternoon. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
9:15 pm PST Mar 4, 2026
11pm PST Mar 4, 2026-6pm PDT Mar 11, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database