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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

White Pass (TWHIT)

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

Rain

45°F

7°C

Humidity 67%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility 1.24 mi
Last update 19 Mar 04:56 AM PDT
Extended Forecast for

Chinook Pass WA

  • Overnight

    Overnight: Rain likely. Mostly cloudy, with a low around 37. South southwest wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Rain Likely

  • Thursday

    Thursday: Rain. High near 41. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 41 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Low around 38. South southwest wind around 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain before 5pm, then rain, possibly mixed with snow. High near 40. West southwest wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain then
    Rain/Snow

  • Friday Night

    Friday Night: Rain and snow showers before 11pm, then a chance of snow showers. Low around 24. West wind 15 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Rain/Snow
    then Chance
    Snow Showers

  • Saturday

    Saturday: A 40 percent chance of snow showers. Partly sunny, with a high near 31. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of snow showers before 11pm. Mostly clear, with a low around 20.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Mostly
    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Rain likely. Mostly cloudy, with a low around 37. South southwest wind around 15 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain. High near 41. South southwest wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 38. South southwest wind around 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain before 5pm, then rain, possibly mixed with snow. High near 40. West southwest wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday Night
Rain and snow showers before 11pm, then a chance of snow showers. Low around 24. West wind 15 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow showers. Partly sunny, with a high near 31. New snow accumulation of less than a half inch possible.
Saturday Night
A 20 percent chance of snow showers before 11pm. Mostly clear, with a low around 20.
Sunday
Mostly sunny, with a high near 36.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
A slight chance of snow showers after 11am. Mostly cloudy, with a high near 42.
Monday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Tuesday
Rain and snow. Cloudy, with a high near 37.
Tuesday Night
Rain and snow. The snow could be heavy at times. Mostly cloudy, with a low around 24.
Wednesday
Snow. Cloudy, with a high near 29. Blustery.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.51°W (Elev. 4823 ft)
Last Update:
3:02 am PDT Mar 19, 2026
Forecast Valid:
5am PDT Mar 19, 2026-6pm PDT Mar 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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