Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

18°F

-8°C

Humidity 91%
Wind Speed N 0 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 25 Jan 04:35 AM PST
Extended Forecast for

Prosser WA

  • Today

    Today: Mostly sunny, with a high near 32. Northwest wind 3 to 5 mph.

    High: 32 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Calm wind.

    Low: 25 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, with a high near 36. Light east wind.

    High: 36 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 39. North wind 3 to 6 mph.

    High: 39 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 10am.  Mostly cloudy, with a high near 43.

    High: 43 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 32. Northwest wind 3 to 5 mph.
Tonight
Increasing clouds, with a low around 25. Calm wind.
Monday
Mostly cloudy, with a high near 36. Light east wind.
Monday Night
Partly cloudy, with a low around 26. Calm wind.
Tuesday
Mostly cloudy, with a high near 39. North wind 3 to 6 mph.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Mostly cloudy, with a high near 40.
Wednesday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 31.
Thursday
A 20 percent chance of rain before 10am. Mostly cloudy, with a high near 43.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 36.
Friday
A slight chance of rain. Mostly cloudy, with a high near 47.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.21°N 119.75°W (Elev. 741 ft)
4:20 am PST Jan 25, 2026
4am PST Jan 25, 2026-6pm PST Jan 31, 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