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

FW0649 Dufur (F0649)

Lat: 45.44717°NLon: 121.14783°WElev: 1368.0ft.

NA

50°F

10°C

Humidity 73%
Wind Speed NA 2 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 42°F (6°C)
Visibility NA
Last update 07 Dec 04:45 PM PST
Extended Forecast for

Grass Valley OR

Wind Advisory December 8, 01:00pm until December 9, 07:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: A 20 percent chance of rain. Mostly sunny, with a steady temperature around 49. Southwest wind around 14 mph, with gusts as high as 24 mph.

    High: 49 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 50 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 42. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: Rain. High near 56. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain and
    Breezy

  • Monday Night

    Monday Night: Rain. Low around 45. Windy, with a southwest wind 29 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Rain and
    Windy

  • Tuesday

    Tuesday: Rain. High near 53. Southwest wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 45. Chance of precipitation is 100%.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: Rain. High near 57. Chance of precipitation is 80%.

    High: 57 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely

  • Thursday

    Thursday: A 50 percent chance of rain. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Mostly sunny, with a steady temperature around 49. Southwest wind around 14 mph, with gusts as high as 24 mph.
Tonight
A 50 percent chance of rain, mainly after 1am. Mostly cloudy, with a low around 42. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain. High near 56. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Low around 45. Windy, with a southwest wind 29 to 31 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 53. Southwest wind 8 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain. Low around 45. Chance of precipitation is 100%.
Wednesday
Rain. High near 57. Chance of precipitation is 80%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain. Mostly cloudy, with a high near 56.
Thursday Night
A chance of rain before 10pm. Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 54.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
A slight chance of rain. Mostly sunny, with a high near 52.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 38.
Sunday
A chance of rain. Partly sunny, with a high near 50.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley OR
 45.35°N 120.79°W (Elev. 2300 ft)
Last Update:
3:20 pm PST Dec 7, 2025
Forecast Valid:
5pm 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