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

33°F

1°C

Humidity 90%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 18 Jan 06:01 PM PST
Extended Forecast for

16 Miles SW Twisp WA

Air Stagnation Advisory January 18, 07:07pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 07:07pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 25 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 36. North wind around 5 mph becoming calm  in the morning.

    High: 36 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27. West wind around 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. West wind 5 to 7 mph.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. West wind around 6 mph.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 25. Northeast wind around 6 mph.
M.L.King Day
Sunny, with a high near 36. North wind around 5 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 27. West wind around 7 mph.
Tuesday
Mostly sunny, with a high near 33. West wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 19. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Friday
A 40 percent chance of snow. Partly sunny, with a high near 26.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 19.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 12.
Sunday
A 50 percent chance of snow. Partly sunny, with a high near 21.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SW Twisp WA
 48.22°N 120.4°W (Elev. 5879 ft)
3:07 pm PST Jan 18, 2026
7pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database