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

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

Lat: 48.42528°NLon: 120.14194°WElev: 1697.0ft.

NA

33°F

1°C

Humidity 100%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 07 Dec 06:06 PM PST
Extended Forecast for

2 Miles ESE Mazama WA

  • Tonight

    Tonight: Rain and snow likely. Mostly cloudy, with a low around 32. North wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    Likely

  • Monday

    Monday: Rain, possibly mixed with snow, becoming all rain after 1pm. High near 38. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Monday Night

    Monday Night: Rain before 1am, then rain, possibly mixed with snow. Low around 32. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 32 °F

    Rain then
    Rain/Snow

  • Tuesday

    Tuesday: A 50 percent chance of rain. Partly sunny, with a high near 42. West wind 6 to 11 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 30. West wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 30 °F

    Rain

  • Wednesday

    Wednesday: Rain. High near 43. Chance of precipitation is 90%.

    High: 43 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, possibly mixed with snow before 4am, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow before 7am, then a chance of rain and snow between 7am and 1pm, then a chance of rain after 1pm. Partly sunny, with a high near 41. Chance of precipitation is 50%.

    High: 41 °F

    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Rain likely before 7pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.

    Low: 31 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Rain and snow likely. Mostly cloudy, with a low around 32. North wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Monday
Rain, possibly mixed with snow, becoming all rain after 1pm. High near 38. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Monday Night
Rain before 1am, then rain, possibly mixed with snow. Low around 32. Southwest wind 13 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday
A 50 percent chance of rain. Partly sunny, with a high near 42. West wind 6 to 11 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Low around 30. West wind 3 to 6 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. High near 43. Chance of precipitation is 90%.
Wednesday Night
Rain likely, possibly mixed with snow before 4am, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow before 7am, then a chance of rain and snow between 7am and 1pm, then a chance of rain after 1pm. Partly sunny, with a high near 41. Chance of precipitation is 50%.
Thursday Night
Rain likely before 7pm, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Friday
A 50 percent chance of rain. Mostly cloudy, with a high near 44.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Saturday
A chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 50%.
Saturday Night
Rain likely, possibly mixed with snow. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Sunday
A chance of rain and snow. Partly sunny, with a high near 43. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Mazama WA
 48.6°N 120.41°W (Elev. 2201 ft)
Last Update:
2:48 pm PST Dec 7, 2025
Forecast Valid:
6pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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