Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Sunnyside Municipal Airport (K1S5)

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

Overcast

32°F

0°C

Humidity 85%
Wind Speed W 3 MPH
Barometer 30.55 in (1034.54 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 19 Jan 01:55 PM PST
Extended Forecast for

2 Miles ENE Sunnyside WA

Air Stagnation Advisory January 19, 03:56pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 03:56pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 24 °F

    Patchy
    Freezing Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 38. Calm wind.

    High: 38 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Patchy freezing fog after 10pm. Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Patchy
    Freezing Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Calm wind.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am. Patchy freezing fog after 10pm.  Otherwise, partly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 10am. Patchy freezing fog before 10am.  Otherwise, partly sunny, with a high near 38.

    High: 38 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog then
    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 39.

    High: 39 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Tonight
Patchy freezing fog after 10pm. Mostly cloudy, with a low around 24. Calm wind.
Tuesday
Partly sunny, with a high near 38. Calm wind.
Tuesday Night
Patchy freezing fog after 10pm. Partly cloudy, with a low around 22. Calm wind.
Wednesday
Mostly sunny, with a high near 37. Calm wind.
Wednesday Night
Patchy fog after 4am. Patchy freezing fog after 10pm. Otherwise, partly cloudy, with a low around 22. Calm wind.
Thursday
Patchy fog before 10am. Patchy freezing fog before 10am. Otherwise, partly sunny, with a high near 38.
Thursday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 23.
Friday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 39.
Friday Night
Mostly clear, with a low around 23.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
A slight chance of rain and snow. Partly sunny, with a high near 41.
Sunday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 28.
Monday
Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Sunnyside WA
 46.33°N 119.97°W (Elev. 758 ft)
3:42 pm PST Jan 19, 2026
3pm PST Jan 19, 2026-6pm PST Jan 26, 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