Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Clear

26°F

-3°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 31 Dec 08:35 PM PST
Extended Forecast for

5 Miles SSW Toppenish WA

Winter Weather Advisory January 1, 04:00am until January 2, 05:00am
Air Stagnation Advisory December 31, 08:46pm until January 1, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Air Stagnation Advisory
  •  
    Air Stagnation Advisory December 31, 08:46pm until January 1, 12:00pm

    NOW until 12:00pm Thu

    Air Stagnation Advisory

  • Tonight

    Low: 24 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 20 percent chance of rain.  Snow level rising to 6500 feet in the afternoon. Cloudy, with a high near 34. Calm wind.

    High: 34 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain.  Cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain.  Mostly cloudy, with a high near 43. Light southeast wind.

    High: 43 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 20 percent chance of rain.  Mostly cloudy, with a high near 44.

    High: 44 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain.  Partly sunny, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 24. Calm wind.
New Year's Day
A 20 percent chance of rain. Snow level rising to 6500 feet in the afternoon. Cloudy, with a high near 34. Calm wind.
Thursday Night
A 20 percent chance of rain. Cloudy, with a low around 30. Calm wind.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 43. Light southeast wind.
Friday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 34. Calm wind.
Saturday
A 20 percent chance of rain. Mostly cloudy, with a high near 44.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 35.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 48.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 34.
Monday
A slight chance of rain. Partly sunny, with a high near 47.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 32.
Tuesday
A slight chance of rain. Partly sunny, with a high near 46.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Wednesday
A slight chance of rain. Partly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Toppenish WA
 46.3°N 120.34°W (Elev. 778 ft)
8:30 pm PST Dec 31, 2025
8pm PST Dec 31, 2025-6pm PST Jan 7, 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