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Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. 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

  • Overnight

    Overnight: Rain likely, mainly after 4am. Mostly cloudy, with a steady temperature around 40. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain Likely

  • Saturday

    Saturday: Rain and snow before 2pm, then a chance of rain. High near 39. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 33. Light and variable wind.

    Low: 33 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of rain after 11am. Mostly cloudy, with a high near 42. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 42 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain before 8pm, then rain and snow between 8pm and 2am, then a chance of snow after 2am. Low around 32. West wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Monday

    Monday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 35. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Snow Likely

  • Monday Night

    Monday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Snow Likely
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Snow, mainly after 11am. Mostly cloudy, with a high near 33.

    High: 33 °F

    Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times. Cloudy, with a low around 23.

    Low: 23 °F

    Heavy Snow

Detailed Forecast

Overnight
Rain likely, mainly after 4am. Mostly cloudy, with a steady temperature around 40. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain and snow before 2pm, then a chance of rain. High near 39. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Saturday Night
A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 33. Light and variable wind.
Sunday
A 50 percent chance of rain after 11am. Mostly cloudy, with a high near 42. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Sunday Night
Rain before 8pm, then rain and snow between 8pm and 2am, then a chance of snow after 2am. Low around 32. West wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 35. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 28. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
Snow, mainly after 11am. Mostly cloudy, with a high near 33.
Tuesday Night
Snow. The snow could be heavy at times. Cloudy, with a low around 23.
Wednesday
Snow. Cloudy, with a high near 29.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 20.
Thursday
A chance of snow. Partly sunny, with a high near 30.
Thursday Night
A chance of snow. Partly cloudy, with a low around 21.
Friday
A slight chance of snow. Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.54°W (Elev. 4580 ft)
Last Update:
11:27 pm PDT Apr 10, 2026
Forecast Valid:
3am PDT Apr 11, 2026-6pm PDT Apr 17, 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