Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

31°F

-1°C

Humidity 90%
Wind Speed N 0 MPH
Barometer 30.51 in (1033.19 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 18 Jan 05:35 AM PST
Extended Forecast for

5 Miles SSW Toppenish WA

Air Stagnation Advisory January 18, 05:42am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 05:42am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Today

    High: 38 °F

    Patchy
    Freezing Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Patchy freezing fog after 1am. Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy
    then Patchy
    Freezing Fog

  • M.L.King Day

    M.L.King Day: Patchy freezing fog before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 39. Calm wind.

    High: 39 °F

    Patchy
    Freezing Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. Calm wind.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Today
Patchy freezing fog before 10am. Mostly cloudy, with a high near 38. Calm wind.
Tonight
Patchy freezing fog after 1am. Mostly cloudy, with a low around 25. Calm wind.
M.L.King Day
Patchy freezing fog before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 39. Calm wind.
Monday Night
Partly cloudy, with a low around 24. Calm wind.
Tuesday
Partly sunny, with a high near 39. Calm wind.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly cloudy, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 29.
Friday
A slight chance of rain. Partly sunny, with a high near 45.
Friday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 24.
Saturday
A slight chance of rain and snow. Partly sunny, with a high near 37.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Toppenish WA
 46.3°N 120.34°W (Elev. 778 ft)
4:21 am PST Jan 18, 2026
5am PST Jan 18, 2026-6pm PST Jan 24, 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