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

White Pass (TWHIT)

Lat: 46.638°NLon: 121.39°WElev: 4498.0ft.

NA

28°F

-2°C

Humidity 79%
Wind Speed E 4 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility 1.24 mi
Wind Chill23°F (-5°C)
Last update 19 Jan 01:02 AM PST
Extended Forecast for

4 Miles SSE Chinook Pass WA

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 29. Wind chill values between 18 and 23. East northeast wind around 11 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 44. Wind chill values between 17 and 27. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. West wind around 6 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 42. North wind around 9 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.

    High: 42 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 26. Light and variable wind becoming south southeast 5 to 9 mph in the evening.

    Low: 26 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of snow after 10am.  Partly sunny, with a high near 36.

    High: 36 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A chance of snow, mainly after 10pm.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Chance Snow

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 29. Wind chill values between 18 and 23. East northeast wind around 11 mph, with gusts as high as 22 mph.
M.L.King Day
Sunny, with a high near 44. Wind chill values between 17 and 27. East northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 31. West wind around 6 mph.
Tuesday
Mostly sunny, with a high near 42. North wind around 9 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 26. Light and variable wind becoming south southeast 5 to 9 mph in the evening.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
A slight chance of snow after 10am. Partly sunny, with a high near 36.
Thursday Night
A chance of snow, mainly after 10pm. Mostly cloudy, with a low around 25.
Friday
A chance of snow. Partly sunny, with a high near 34.
Friday Night
A chance of snow. Mostly cloudy, with a low around 25.
Saturday
A chance of snow. Mostly cloudy, with a high near 33.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 24.
Sunday
Snow likely. Mostly cloudy, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Chinook Pass WA
 46.82°N 121.49°W (Elev. 5030 ft)
7:01 pm PST Jan 18, 2026
1am PST Jan 19, 2026-6pm PST Jan 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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