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 85%
Wind Speed W 4 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 23 Jan 12:55 AM PST
Extended Forecast for

17 Miles SE Mattawa WA

  • Overnight

    Overnight: Cloudy, with a low around 25. West wind around 5 mph.

    Low: 25 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 37. North wind around 6 mph.

    High: 37 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly clear, with a low around 21. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 21 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 33. Calm wind.

    High: 33 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 20. Light and variable wind.

    Low: 20 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Monday Night

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

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 25. West wind around 5 mph.
Friday
Mostly cloudy, with a high near 37. North wind around 6 mph.
Friday Night
Mostly clear, with a low around 21. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 33. Calm wind.
Saturday Night
Mostly clear, with a low around 20. Light and variable wind.
Sunday
Mostly sunny, with a high near 34.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 35.
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
Mostly cloudy, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 30.
Thursday
A slight chance of rain and snow. Mostly cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SE Mattawa WA
 46.59°N 119.64°W (Elev. 600 ft)
12:45 am PST Jan 23, 2026
1am PST Jan 23, 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