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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

White Pass (TWHIT)

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

unknown precip

64°F

18°C

Humidity 55%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility 1.24 mi
Last update 18 Sep 04:45 PM PDT
Extended Forecast for

White Pass WA

  • Tonight

    Tonight: Mostly clear, with a low around 45. West wind around 5 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47. Calm wind becoming east southeast around 5 mph after midnight.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71. Light and variable wind.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. Calm wind becoming south around 5 mph.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 45. West wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 68. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 47. Calm wind becoming east southeast around 5 mph after midnight.
Sunday
Sunny, with a high near 71. Light and variable wind.
Sunday Night
Mostly clear, with a low around 48. Calm wind becoming south around 5 mph.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Mostly sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
A slight chance of rain. Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
White Pass WA
 46.64°N 121.4°W (Elev. 4623 ft)
Last Update:
1:27 pm PDT Sep 18, 2026
Forecast Valid:
5pm PDT Sep 18, 2026-6pm PDT Sep 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation