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.

Overcast

31°F

-1°C

Humidity 84%
Wind Speed WSW 6 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 22 Jan 11:15 PM PST
Extended Forecast for

Prosser WA

  • Tonight

    Tonight: Cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 35. Light and variable wind becoming northwest around 6 mph in the morning.

    High: 35 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly clear, with a low around 20. Light west wind.

    Low: 20 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 33. Light and variable wind.

    High: 33 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Monday Night

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

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 23. Calm wind.
Friday
Mostly cloudy, with a high near 35. Light and variable wind becoming northwest around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 20. Light west wind.
Saturday
Sunny, with a high near 33. Light and variable wind.
Saturday Night
Mostly clear, with a low around 20. Calm wind.
Sunday
Mostly sunny, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 23.
Monday
Partly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 41.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 30.
Thursday
A slight chance of rain and snow. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
Prosser WA
 46.22°N 119.79°W (Elev. 715 ft)
9:15 pm PST Jan 22, 2026
11pm PST Jan 22, 2026-6pm PST Jan 29, 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