Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

32°F

0°C

Humidity 76%
Wind Speed NW 3 MPH
Barometer 30.41 in (1029.8 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 21 Jan 03:35 PM PST
Extended Forecast for

Toppenish WA

  • Tonight

    Tonight: Cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 35. Calm wind.

    High: 35 °F

    Cloudy

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 38. North wind 3 to 5 mph.

    High: 38 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 18. Calm wind.

    Low: 18 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 24. Calm wind.
Thursday
Cloudy, with a high near 35. Calm wind.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 22. Calm wind.
Friday
Sunny, with a high near 38. North wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 18. Calm wind.
Saturday
Sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 22.
Monday
Partly sunny, with a high near 38.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 26.
Wednesday
A slight chance of rain and snow. Mostly cloudy, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Toppenish WA
 46.37°N 120.3°W (Elev. 801 ft)
3:20 pm PST Jan 21, 2026
3pm PST Jan 21, 2026-6pm PST Jan 28, 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