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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Stampede Pass (KSMP)

Lat: 47.27648°NLon: 121.33817°WElev: 3970.0ft.

light frz rain,mist

26°F

-3°C

Humidity 100%
Wind Speed NA 3 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 26°F (-3°C)
Visibility 3.00 mi
Last update 01 Jan 03:33 PM PST
Extended Forecast for

14 Miles N Roslyn WA

Winter Weather Advisory January 1, 03:49pm until January 2, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 1, 03:49pm until January 2, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • New Year's Day

    High: 31 °F

    Wintry Mix
    Likely

  • Tonight

    Tonight: Rain, snow, and freezing rain before 1am, then rain or freezing rain between 1am and 4am, then rain, snow, freezing rain, and sleet after 4am. Temperature rising to around 32 by 3am. Calm wind. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.

    Low: 29 °F⇑

    Wintry Mix

  • Friday

    Friday: Rain, snow, and sleet before 10am, then rain likely, possibly mixed with snow between 10am and 1pm, then rain likely after 1pm. High near 38. Light southwest wind. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.

    High: 38 °F

    Wintry Mix
    then
    Rain/Snow
    Likely

  • Friday Night

    Friday Night: Rain likely, possibly mixed with snow before 1am, then a chance of rain. Mostly cloudy, with a low around 34. Light east wind. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain. High near 37. South wind 3 to 5 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 37 °F

    Rain

  • Saturday Night

    Saturday Night: Rain before 1am, then rain and snow. Low around 33. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain then
    Rain/Snow

  • Sunday

    Sunday: Snow. High near 36. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.

    Low: 29 °F

    Snow Likely

Detailed Forecast

New Year's Day
A chance of rain and snow before 4pm, then rain, snow, and freezing rain likely. Mostly cloudy, with a high near 31. Light south wind. Chance of precipitation is 60%. Little or no ice accumulation expected. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain, snow, and freezing rain before 1am, then rain or freezing rain between 1am and 4am, then rain, snow, freezing rain, and sleet after 4am. Temperature rising to around 32 by 3am. Calm wind. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New snow and sleet accumulation of less than a half inch possible.
Friday
Rain, snow, and sleet before 10am, then rain likely, possibly mixed with snow between 10am and 1pm, then rain likely after 1pm. High near 38. Light southwest wind. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.
Friday Night
Rain likely, possibly mixed with snow before 1am, then a chance of rain. Mostly cloudy, with a low around 34. Light east wind. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
Rain. High near 37. South wind 3 to 5 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 1am, then rain and snow. Low around 33. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 36. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely. Mostly cloudy, with a low around 29. Chance of precipitation is 70%.
Monday
A 50 percent chance of snow. Mostly cloudy, with a high near 35.
Monday Night
A chance of snow. Mostly cloudy, with a low around 28.
Tuesday
Snow likely. Mostly cloudy, with a high near 34.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 28.
Wednesday
Snow likely. Mostly cloudy, with a high near 33.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 23.
Thursday
A chance of snow. Partly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles N Roslyn WA
 47.45°N 121.1°W (Elev. 3950 ft)
Last Update:
3:20 pm PST Jan 1, 2026
Forecast Valid:
3pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation