Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

OROVILLE (OVLW1)

Lat: 48.96311°NLon: 119.49161°WElev: 1450.0ft.

NA

49°F

9°C

Humidity 77%
Wind Speed S 16 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 08 Dec 06:41 PM PST
Extended Forecast for

26 Miles NE Mazama WA

  • Tonight

    Tonight: Rain and snow, mainly before 1am.  Low around 26. West wind around 11 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow

  • Tuesday

    Tuesday: Snow likely, mainly after 4pm.  Increasing clouds, with a high near 36. West wind 6 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Partly Sunny
    then Snow
    Likely

  • Tuesday Night

    Tuesday Night: Snow before 1am, then rain and snow. The snow could be heavy at times.  Temperature falling to near 27 by 8pm, then rising to around 33 during the remainder of the night. Southwest wind around 6 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 27 °F

    Heavy Snow
    then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow.  High near 41. West wind 8 to 10 mph, with gusts as high as 24 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow likely, possibly mixed with rain.  Mostly cloudy, with a low around 28. West wind around 6 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 28 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Snow likely, possibly mixed with rain, mainly before 10am.  Mostly cloudy, with a high near 38. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 27. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Friday

    Friday: A chance of rain and snow.  Mostly cloudy, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain and snow.  Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Rain and snow, mainly before 1am. Low around 26. West wind around 11 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Snow likely, mainly after 4pm. Increasing clouds, with a high near 36. West wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow before 1am, then rain and snow. The snow could be heavy at times. Temperature falling to near 27 by 8pm, then rising to around 33 during the remainder of the night. Southwest wind around 6 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Wednesday
Rain, possibly mixed with snow. High near 41. West wind 8 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow likely, possibly mixed with rain. Mostly cloudy, with a low around 28. West wind around 6 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow likely, possibly mixed with rain, mainly before 10am. Mostly cloudy, with a high near 38. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 27. New snow accumulation of less than a half inch possible.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 40%.
Saturday Night
Snow likely, possibly mixed with rain. Mostly cloudy, with a low around 26. Chance of precipitation is 60%.
Sunday
Snow likely. Partly sunny, with a high near 38. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 24.
Monday
Snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
26 Miles NE Mazama WA
 48.9°N 120.05°W (Elev. 4498 ft)
3:17 pm PST Dec 8, 2025
7pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
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Additional Resources

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