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

32°F

0°C

Humidity 93%
Wind Speed N 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 18 Jan 11:01 PM PST
Extended Forecast for

4 Miles WSW Mazama WA

Air Stagnation Advisory January 18, 11:49pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 18, 11:49pm 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 39. Light and variable wind.

    High: 39 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a steady temperature around 32. West wind around 6 mph.

    Low: 32 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. Northwest wind around 6 mph becoming calm  in the morning.

    High: 41 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. Light northwest wind.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow after 4pm.  Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 26. Light and variable wind.
M.L.King Day
Sunny, with a high near 39. Light and variable wind.
Monday Night
Mostly clear, with a steady temperature around 32. West wind around 6 mph.
Tuesday
Mostly sunny, with a high near 41. Northwest wind around 6 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 25. Light northwest wind.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow after 4pm. Mostly sunny, with a high near 36.
Thursday Night
A 30 percent chance of snow, mainly before 10pm. Partly cloudy, with a low around 25.
Friday
A 40 percent chance of snow. Partly sunny, with a high near 33.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 17.
Saturday
A 50 percent chance of snow. Partly sunny, with a high near 26.
Saturday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 18.
Sunday
Snow likely. Mostly cloudy, with a high near 29. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Mazama WA
 48.61°N 120.51°W (Elev. 3356 ft)
9:02 pm PST Jan 18, 2026
11pm 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