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 77%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 19 Jan 04:01 PM PST
Extended Forecast for

4 Miles W Trinity WA

Air Stagnation Advisory January 19, 04:45pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 04:45pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 37. North wind 6 to 8 mph becoming east in the afternoon.

    High: 37 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 24. West wind around 7 mph.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 36. South wind 5 to 7 mph.

    High: 36 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. West wind around 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 21.

    Low: 21 °F

    Partly Cloudy

  • Friday

    Friday: A 10 percent chance of snow after 4pm.  Sunny, with a high near 33.

    High: 33 °F

    Sunny then
    Slight Chance
    Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 30. Northwest wind 5 to 9 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 37. North wind 6 to 8 mph becoming east in the afternoon.
Tuesday Night
Mostly clear, with a low around 24. West wind around 7 mph.
Wednesday
Sunny, with a high near 36. South wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 23. West wind around 6 mph.
Thursday
Mostly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 21.
Friday
A 10 percent chance of snow after 4pm. Sunny, with a high near 33.
Friday Night
A slight chance of snow before 10pm, then a slight chance of snow after 4am. Mostly clear, with a low around 20. Chance of precipitation is 20%.
Saturday
A 30 percent chance of snow, mainly after 10am. Mostly sunny, with a high near 33.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 23.
Sunday
Snow likely. Partly sunny, with a high near 34. Chance of precipitation is 60%.
Sunday Night
Snow likely. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Monday
A 50 percent chance of snow. Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Trinity WA
 48.07°N 120.93°W (Elev. 4400 ft)
3:11 pm PST Jan 19, 2026
4pm PST Jan 19, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

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