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 88%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 18 Jan 08:01 PM PST
Extended Forecast for

16 Miles NNW Mazama WA

Air Stagnation Advisory January 18, 09:04pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 09:04pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 24 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 35. East wind 6 to 11 mph becoming west in the morning.

    High: 35 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. West wind 9 to 14 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Northwest wind 7 to 15 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18. Northwest wind around 10 mph.

    Low: 18 °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 18.

    Low: 18 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after 10am.  Mostly sunny, with a high near 24.

    High: 24 °F

    Slight Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 24. Northeast wind 10 to 13 mph.
M.L.King Day
Sunny, with a high near 35. East wind 6 to 11 mph becoming west in the morning.
Monday Night
Partly cloudy, with a low around 25. West wind 9 to 14 mph.
Tuesday
Mostly sunny, with a high near 30. Northwest wind 7 to 15 mph.
Tuesday Night
Mostly clear, with a low around 18. Northwest wind around 10 mph.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly cloudy, with a low around 18.
Thursday
A 20 percent chance of snow after 10am. Mostly sunny, with a high near 24.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Friday
Snow likely, mainly after 4pm. Partly sunny, with a high near 20. Chance of precipitation is 60%.
Friday Night
Snow likely. Mostly cloudy, with a low around 8. Chance of precipitation is 60%.
Saturday
Snow likely. Partly sunny, with a high near 15. Blustery. Chance of precipitation is 60%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 10. Breezy. Chance of precipitation is 60%.
Sunday
Snow likely. Mostly cloudy, with a high near 18. Blustery. Chance of precipitation is 60%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNW Mazama WA
 48.83°N 120.58°W (Elev. 7539 ft)
3:07 pm PST Jan 18, 2026
9pm PST Jan 18, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

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