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 78%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 20 Jan 02:01 AM PST
Extended Forecast for

12 Miles NNW Washington Pass WA

Air Stagnation Advisory January 20, 02:28am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 02:28am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Overnight

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 32. Northwest wind 6 to 10 mph becoming southeast in the afternoon.

    High: 32 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. North wind around 8 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 32. Northwest wind 5 to 8 mph becoming southwest in the afternoon.

    High: 32 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. Southwest wind around 6 mph.

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Northwest wind around 11 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 32. Northwest wind 6 to 10 mph becoming southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 22. North wind around 8 mph.
Wednesday
Sunny, with a high near 32. Northwest wind 5 to 8 mph becoming southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 20. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Sunny, with a high near 27.
Friday Night
Mostly clear, with a low around 15.
Saturday
Sunny, with a high near 29.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 18.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 27.
Sunday Night
Snow likely. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNW Washington Pass WA
 48.69°N 120.7°W (Elev. 6276 ft)
1:12 am PST Jan 20, 2026
2am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

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