Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

29°F

-2°C

Humidity 84%
Wind Speed N 0 MPH
Barometer 30.71 in (1039.96 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 29 Dec 01:15 AM PST
Extended Forecast for

Prosser WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 24. Light west wind.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36. Northwest wind 3 to 5 mph.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. Light northwest wind.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. Light northwest wind.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Mostly cloudy, with a high near 35.

    High: 35 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain.  Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 24. Light west wind.
Monday
Partly sunny, with a high near 36. Northwest wind 3 to 5 mph.
Monday Night
Partly cloudy, with a low around 23. Light northwest wind.
Tuesday
Mostly sunny, with a high near 36. Light northwest wind.
Tuesday Night
Mostly clear, with a low around 22. Calm wind.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 24.
New Year's Day
Mostly cloudy, with a high near 35.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 27.
Friday
A chance of rain, mainly before 10am. Mostly cloudy, with a high near 41.
Friday Night
A chance of rain. Mostly cloudy, with a low around 29.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 42.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 31.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 46.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.2°N 119.78°W (Elev. 646 ft)
1:25 am PST Dec 29, 2025
1am PST Dec 29, 2025-6pm PST Jan 4, 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