Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

22°F

-6°C

Humidity 89%
Wind Speed N 0 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 24 Jan 08:35 AM PST
Extended Forecast for

Prosser WA

  • Today

    Today: Cloudy through mid morning, then gradual clearing, with a high near 31. Light south wind.

    High: 31 °F

    Gradual
    Clearing

  • Tonight

    Tonight: Mostly clear, with a low around 26. Calm wind.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 31. Calm wind.

    High: 31 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Cloudy

  • Monday

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

    High: 36 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy

Detailed Forecast

Today
Cloudy through mid morning, then gradual clearing, with a high near 31. Light south wind.
Tonight
Mostly clear, with a low around 26. Calm wind.
Sunday
Mostly sunny, with a high near 31. Calm wind.
Sunday Night
Mostly cloudy, with a low around 24. Calm wind.
Monday
Mostly cloudy, with a high near 36. Calm wind.
Monday Night
Partly cloudy, with a low around 25.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
Mostly cloudy, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Mostly cloudy, with a high near 44.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
4:20 am PST Jan 24, 2026
8am PST Jan 24, 2026-6pm PST Jan 30, 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