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

25°F

-4°C

Humidity 90%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 19 Jan 07:06 PM PST
Extended Forecast for

4 Miles WSW Winthrop WA

Air Stagnation Advisory January 19, 07:39pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 07:39pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 35. Calm wind.

    High: 35 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34. Calm wind.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 22. Calm wind.

    Low: 22 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Thursday Night

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

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. Calm wind.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 35. Calm wind.
Tuesday Night
Mostly clear, with a low around 21. Calm wind.
Wednesday
Mostly sunny, with a high near 34. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 22. Calm wind.
Thursday
Partly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Sunny, with a high near 34.
Friday Night
Mostly clear, with a low around 20.
Saturday
A 20 percent chance of snow after 10am. Mostly sunny, with a high near 32.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Sunday
A chance of rain and snow. Partly sunny, with a high near 32. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Monday
A chance of rain and snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Winthrop WA
 48.45°N 120.24°W (Elev. 2402 ft)
3:11 pm PST Jan 19, 2026
7pm PST Jan 19, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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