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

STEHEKIN-AIRSTRIP (STRW1)

Lat: 48.34694°NLon: 120.72028°WElev: 1230.0ft.

NA

31°F

-1°C

Humidity 77%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 20 Jan 03:01 AM PST
Extended Forecast for

Washington Pass WA

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

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Overnight

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 30. North wind 6 to 13 mph becoming west in the afternoon.

    High: 30 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. West wind around 9 mph.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 30. Southwest wind 6 to 9 mph.

    High: 30 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17. Southwest wind 6 to 8 mph.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 25. Northwest wind around 14 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 30. North wind 6 to 13 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 20. West wind around 9 mph.
Wednesday
Sunny, with a high near 30. Southwest wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 17. Southwest wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Sunny, with a high near 25.
Friday Night
Mostly clear, with a low around 12.
Saturday
Sunny, with a high near 26.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 16.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 25.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 21.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Washington Pass WA
 48.51°N 120.64°W (Elev. 6827 ft)
1:12 am PST Jan 20, 2026
3am PST Jan 20, 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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