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

26°F

-3°C

Humidity 85%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Last update 19 Jan 02:06 PM PST
Extended Forecast for

12 Miles SW Winthrop WA

Air Stagnation Advisory January 19, 02:23pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 02:23pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • M.L.King Day

    High: 33 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 40. Calm wind.

    High: 40 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear

  • Wednesday

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

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

Detailed Forecast

M.L.King Day
Partly sunny, with a high near 33. Calm wind.
Tonight
Mostly cloudy, with a low around 27. Calm wind.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 40. Calm wind.
Tuesday Night
Mostly clear, with a low around 24. Calm wind.
Wednesday
Mostly sunny, with a high near 37. Calm wind.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Sunny, with a high near 35.
Friday Night
Mostly clear, with a low around 21.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 34.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 24.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 35.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SW Winthrop WA
 48.37°N 120.41°W (Elev. 2887 ft)
1:31 pm PST Jan 19, 2026
2pm PST Jan 19, 2026-6pm PST Jan 25, 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