National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Strong Storm System Brings Heavy Mountain Snow to the Sierra Nevada and Critical Fire Weather Conditions to the Plains

A Pacific storm system will continue to bring low elevation rain and mountain snow to much of the West through Wednesday, with heavy mountain snow expected in the higher elevations of the Sierra Nevada. This system will also bring strong winds to the Intermountain West, Rockies, and Plains, which will create Critical fire weather conditions for portions of the central and southern High Plains. Read More >

Current conditions at

White Pass (TWHIT)

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

NA

N/A

Humidity 70%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint N/A
Visibility 1.24 mi
Last update 03 Apr 10:56 AM PDT
Extended Forecast for

Chinook Pass WA

  • This Afternoon

    This Afternoon: A 50 percent chance of rain. Mostly cloudy, with a high near 55. West southwest wind around 8 mph, with gusts as high as 21 mph.

    High: 55 °F

    Chance Rain

  • Tonight

    Tonight: Snow, possibly mixed with rain. Low around 37. Northwest wind 11 to 14 mph becoming west southwest after midnight. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain then
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow before 2pm, then a chance of rain. High near 43. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then a slight chance of snow after 11pm. Mostly cloudy, with a low around 33. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 20 percent chance of snow before 11am. Mostly sunny, with a high near 47. Northwest wind 8 to 13 mph.

    High: 47 °F

    Slight Chance
    Snow then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of rain after 11am. Sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A slight chance of rain, mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 31.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Saturday

    Saturday: A slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

This Afternoon
A 50 percent chance of rain. Mostly cloudy, with a high near 55. West southwest wind around 8 mph, with gusts as high as 21 mph.
Tonight
Snow, possibly mixed with rain. Low around 37. Northwest wind 11 to 14 mph becoming west southwest after midnight. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain and snow before 2pm, then a chance of rain. High near 43. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain before 8pm, then a chance of rain and snow between 8pm and 11pm, then a slight chance of snow after 11pm. Mostly cloudy, with a low around 33. West southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
A 20 percent chance of snow before 11am. Mostly sunny, with a high near 47. Northwest wind 8 to 13 mph.
Thursday Night
Mostly clear, with a low around 31.
Friday
A 20 percent chance of rain after 11am. Sunny, with a high near 51.
Friday Night
A slight chance of rain, mixing with snow after 8pm, then gradually ending. Partly cloudy, with a low around 31.
Saturday
A slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
A chance of rain and snow. Mostly sunny, with a high near 51.
Sunday Night
A chance of rain. Partly cloudy, with a low around 34.
Monday
A chance of rain. Mostly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.86°N 121.53°W (Elev. 3973 ft)
Last Update:
2:15 pm PDT Apr 21, 2026
Forecast Valid:
2pm PDT Apr 21, 2026-6pm PDT Apr 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation