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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

ALPENTAL EXIT (TALPE)

Lat: 47.427°NLon: 121.418°WElev: 2972.0ft.

Rain

41°F

5°C

Humidity 100%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility 1.24 mi
Last update 20 Mar 06:21 PM PDT
Extended Forecast for

Snoqualmie Pass WA

Flood Watch March 20, 06:37pm until March 20, 08:00pm
Click here for hazard details and duration
...
  •  
    Flood Watch March 20, 06:37pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Flood Watch

  • Tonight

    Low: 30 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly before 8am. Partly sunny, with a high near 35. Wind chill values between 25 and 30. West northwest wind 5 to 7 mph. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Chance Snow
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before 11pm. Partly cloudy, with a low around 25. West wind 3 to 7 mph. Little or no snow accumulation expected.

    Low: 25 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow. Partly sunny, with a high near 40. Wind chill values between 23 and 33. West wind 3 to 6 mph. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 28. West northwest wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain and snow after 11pm. Mostly cloudy, with a low around 33. Chance of precipitation is 40%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 11am. Cloudy, with a high near 40.

    High: 40 °F

    Rain/Snow
    then Rain

Detailed Forecast

Tonight
A chance of rain before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of snow after 2am. Mostly cloudy, with a low around 30. West northwest wind around 8 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A 30 percent chance of snow, mainly before 8am. Partly sunny, with a high near 35. Wind chill values between 25 and 30. West northwest wind 5 to 7 mph. New snow accumulation of less than a half inch possible.
Saturday Night
A 30 percent chance of snow, mainly before 11pm. Partly cloudy, with a low around 25. West wind 3 to 7 mph. Little or no snow accumulation expected.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 40. Wind chill values between 23 and 33. West wind 3 to 6 mph. Little or no snow accumulation expected.
Sunday Night
Mostly cloudy, with a low around 28. West northwest wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 44.
Monday Night
A chance of rain and snow after 11pm. Mostly cloudy, with a low around 33. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday
Rain and snow, becoming all rain after 11am. Cloudy, with a high near 40.
Tuesday Night
Rain before 11pm, then rain and snow. Cloudy, with a low around 31.
Wednesday
Snow, possibly mixed with rain. Cloudy, with a high near 35.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 25.
Thursday
A chance of snow. Partly sunny, with a high near 38.
Thursday Night
Mostly clear, with a low around 25.
Friday
A slight chance of snow. Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Snoqualmie Pass WA
 47.43°N 121.44°W (Elev. 3983 ft)
Last Update:
11:27 am PDT Mar 20, 2026
Forecast Valid:
6pm PDT Mar 20, 2026-6pm PDT Mar 27, 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