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

Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

NCSB (NCSW1)

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

NA

34°F

1°C

Humidity 100%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 08 Dec 10:06 AM PST
Extended Forecast for

6 Miles SSE Mazama WA

  • Today

    Today: Rain, possibly mixed with snow, becoming all rain after 2pm. High near 38. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow

  • Tonight

    Tonight: Rain before midnight, then rain and snow likely between midnight and 2am, then a slight chance of snow after 2am. Low around 30. Breezy, with a west wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain then
    Rain/Snow
    Likely and
    Breezy

  • Tuesday

    Tuesday: A 50 percent chance of snow. Increasing clouds, with a high near 36. West wind 6 to 13 mph. New snow accumulation of less than one inch possible.

    High: 36 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow before 1am, then rain, possibly mixed with snow. Low around 29. Southwest wind 3 to 6 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 29 °F

    Snow then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. High near 37. West wind 7 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Rain and snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Rain likely, possibly mixed with snow, mainly before 10pm. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.

    Low: 33 °F

    Rain/Snow
    Likely

  • Friday

    Friday: A chance of rain and snow before 10am, then a chance of rain. Partly sunny, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
Rain, possibly mixed with snow, becoming all rain after 2pm. High near 38. Southeast wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 100%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Rain before midnight, then rain and snow likely between midnight and 2am, then a slight chance of snow after 2am. Low around 30. Breezy, with a west wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Tuesday
A 50 percent chance of snow. Increasing clouds, with a high near 36. West wind 6 to 13 mph. New snow accumulation of less than one inch possible.
Tuesday Night
Snow before 1am, then rain, possibly mixed with snow. Low around 29. Southwest wind 3 to 6 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Wednesday
Rain, possibly mixed with snow before 10am, then rain between 10am and 4pm, then rain, possibly mixed with snow after 4pm. High near 37. West wind 7 to 9 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday Night
Rain likely, possibly mixed with snow, mainly before 10pm. Mostly cloudy, with a low around 33. Chance of precipitation is 60%.
Friday
A chance of rain and snow before 10am, then a chance of rain. Partly sunny, with a high near 39. Chance of precipitation is 40%.
Friday Night
A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 40%.
Saturday Night
Rain and snow likely. Mostly cloudy, with a low around 30. Chance of precipitation is 60%.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 37. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSE Mazama WA
 48.54°N 120.37°W (Elev. 3986 ft)
Last Update:
9:23 am PST Dec 8, 2025
Forecast Valid:
10am PST Dec 8, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation