Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

7-Day Forecast 44.33°N 121.59°W (Text-Only)
NWS Forecast for: 3 Miles NW Sisters OR
Issued by: National Weather Service Pendleton, OR
Last Update: 4:20 am PST Dec 31, 2025
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  • Today

    Today: Partly sunny, with a high near 44. Calm wind.

    High: 44 °F

    Partly Sunny



  • Tonight

    Tonight: A slight chance of rain between 1am and 4am, then a chance of rain or freezing rain.  Increasing clouds, with a low around 25. Calm wind.  Chance of precipitation is 30%.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Rain/Freezing
    Rain

  • New
    Year's
    Day

    New Year's Day: A chance of rain, snow, and freezing rain before 10am, then rain.  High near 39. Calm wind.  Chance of precipitation is 80%. Little or no ice accumulation expected.  Little or no snow accumulation expected.

    High: 39 °F

    Wintry Mix
    Likely then
    Rain

  • Thursday
    Night

    Thursday Night: Rain.  Patchy fog. Low around 31. Calm wind.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Rain and
    Patchy Fog


  • Friday

    Friday: A 40 percent chance of rain.  Areas of fog before 10am.  Otherwise, mostly cloudy, with a high near 48. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 48 °F

    Chance Rain
    and Areas Fog


  • Friday
    Night

    Friday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain



  • Saturday

    Saturday: Rain likely.  Partly sunny, with a high near 46. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely



  • Saturday
    Night

    Saturday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 30.

    Low: 30 °F

    Chance Rain



  • Sunday

    Sunday: A chance of rain and snow before 1pm, then a chance of rain.  Snow level 4300 feet. Partly sunny, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Chance
    Rain/Snow


  • Today: Partly sunny, with a high near 44. Calm wind.

    Tonight: A slight chance of rain between 1am and 4am, then a chance of rain or freezing rain. Increasing clouds, with a low around 25. Calm wind. Chance of precipitation is 30%.

    New Year's Day: A chance of rain, snow, and freezing rain before 10am, then rain. High near 39. Calm wind. Chance of precipitation is 80%. Little or no ice accumulation expected. Little or no snow accumulation expected.

    Thursday Night: Rain. Patchy fog. Low around 31. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Friday: A 40 percent chance of rain. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 48. Calm wind becoming southeast around 5 mph in the afternoon.

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 32.

    Saturday: Rain likely. Partly sunny, with a high near 46. Chance of precipitation is 60%.

    Saturday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 30.

    Sunday: A chance of rain and snow before 1pm, then a chance of rain. Snow level 4300 feet. Partly sunny, with a high near 44. Chance of precipitation is 50%.

    Sunday Night: A chance of rain before 10pm, then a chance of rain and snow. Snow level 4200 feet. Mostly cloudy, with a low around 29.

    Monday: A chance of rain and snow. Snow level 4100 feet. Partly sunny, with a high near 44.

    Monday Night: A slight chance of rain and snow. Snow level 4100 feet. Partly cloudy, with a low around 27.

    Tuesday: A slight chance of rain and snow. Snow level 3700 feet rising to 4300 feet in the afternoon. Mostly sunny, with a high near 45.



    3 Miles NW Sisters OR
     44.33°N 121.59°W (Elev. 3251 ft)

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