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

34°F

1°C

Humidity 84%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 18 Jan 07:01 PM PST
Extended Forecast for

21 Miles NW Mazama WA

Air Stagnation Advisory January 18, 07:22pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 07:22pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 26 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 40. East wind 5 to 7 mph becoming calm  in the afternoon.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 26. West wind 5 to 7 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. Northwest wind 5 to 9 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 21. Northwest wind around 7 mph.

    Low: 21 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly sunny, with a high near 29.

    High: 29 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 26. Northeast wind around 8 mph.
M.L.King Day
Sunny, with a high near 40. East wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Increasing clouds, with a low around 26. West wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 35. Northwest wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 21. Northwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 34.
Wednesday Night
Partly cloudy, with a low around 20.
Thursday
A 20 percent chance of snow after 10am. Mostly sunny, with a high near 29.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 19.
Friday
Snow likely, mainly after 4pm. Partly sunny, with a high near 25. Chance of precipitation is 60%.
Friday Night
Snow likely. Mostly cloudy, with a low around 11. Chance of precipitation is 60%.
Saturday
Snow likely. Mostly cloudy, with a high near 20. Chance of precipitation is 60%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 13. Chance of precipitation is 60%.
Sunday
Snow likely. Mostly cloudy, with a high near 23. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NW Mazama WA
 48.83°N 120.74°W (Elev. 6033 ft)
3:07 pm PST Jan 18, 2026
7pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

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