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

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

21°F

-6°C

Humidity 92%
Wind Speed NW 4 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill15°F (-9°C)
Last update 19 Jan 09:06 AM PST
Extended Forecast for

Winthrop WA

Air Stagnation Advisory January 19, 10:02am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 10:02am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • M.L.King Day

    High: 35 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 38. Calm wind.

    High: 38 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36. Calm wind.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

M.L.King Day
Sunny, with a high near 35. Calm wind.
Tonight
Mostly cloudy, with a low around 21. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 38. Calm wind.
Tuesday Night
Mostly clear, with a low around 20. Calm wind.
Wednesday
Mostly sunny, with a high near 36. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 19.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 32.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Sunday
A chance of rain and snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop WA
 48.46°N 120.18°W (Elev. 1900 ft)
8:27 am PST Jan 19, 2026
10am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database