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

16 Miles SW Twisp WA

Air Stagnation Advisory January 20, 03:48am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 03:48am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Overnight

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. North wind 5 to 7 mph becoming calm  in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Northwest wind around 6 mph.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 32. West wind 3 to 5 mph.

    High: 32 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17. West wind 3 to 5 mph.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 27.

    High: 27 °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 26.

    High: 26 °F

    Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 26. Northwest wind around 8 mph.
Tuesday
Mostly sunny, with a high near 33. North wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 22. Northwest wind around 6 mph.
Wednesday
Sunny, with a high near 32. West wind 3 to 5 mph.
Wednesday Night
Partly cloudy, with a low around 17. West wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Partly cloudy, with a low around 15.
Friday
Sunny, with a high near 26.
Friday Night
Mostly clear, with a low around 12.
Saturday
Sunny, with a high near 27.
Saturday Night
A 10 percent chance of snow. Partly cloudy, with a low around 16.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 25.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 20.
Monday
A 40 percent chance of snow. Partly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SW Twisp WA
 48.22°N 120.4°W (Elev. 5879 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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