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

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

SISTERS (K6K5)

Lat: 44.30445°NLon: 121.53909°WElev: 3168.0ft.

NA

54°F

12°C

Humidity 66%
Wind Speed NA 4 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 09 Dec 01:55 AM PST
Extended Forecast for

5 Miles WSW Mount Bachelor OR

  • Overnight

    Overnight: Rain. Low around 39. West wind around 14 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Tuesday

    Tuesday: Rain. High near 44. West wind 10 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 44 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 41. West wind 8 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Rain Likely

  • Wednesday

    Wednesday: A 40 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 48. West wind 8 to 10 mph, with gusts as high as 24 mph.

    High: 48 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. West wind around 6 mph.

    Low: 35 °F

    Chance Rain

  • Thursday

    Thursday: A 30 percent chance of rain, mainly before 10am. Mostly sunny, with a high near 47.

    High: 47 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain. Low around 39. West wind around 14 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain. High near 44. West wind 10 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 41. West wind 8 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 40 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 48. West wind 8 to 10 mph, with gusts as high as 24 mph.
Wednesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. West wind around 6 mph.
Thursday
A 30 percent chance of rain, mainly before 10am. Mostly sunny, with a high near 47.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Mostly sunny, with a high near 51.
Friday Night
Partly cloudy, with a low around 35.
Saturday
A slight chance of rain after 4pm. Mostly sunny, with a high near 52.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 34.
Sunday
A chance of rain and snow. Snow level 6000 feet. Mostly cloudy, with a high near 43.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 35.
Monday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mount Bachelor OR
 43.97°N 121.79°W (Elev. 5000 ft)
Last Update:
2:30 am PST Dec 9, 2025
Forecast Valid:
2am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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