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 >

Current conditions at

Portland-Hillsboro Airport (KHIO)

Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.

Clear

46°F

8°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 07 Dec 07:20 PM PST
Extended Forecast for

Farmington OR

Flood Watch December 8, 04:00am until December 12, 04:00am
Wind Advisory December 8, 07:00am until December 9, 04:00am
Click here for hazard details and duration
Flood Watch
Wind Advisory
  • Tonight

    Tonight: Showers, mainly after 3am.  Low around 49. South wind 3 to 5 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Showers then
    Showers

  • Monday

    Monday: Showers before 10am, then rain, mainly after 10am.  High near 58. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Rain.  Low around 48. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 48 °F

    Rain and
    Breezy

  • Tuesday

    Tuesday: Rain.  High near 57. East wind around 6 mph becoming south southwest in the afternoon.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 57 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 50. South southwest wind around 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 59. Chance of precipitation is 100%.

    High: 59 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 52. Chance of precipitation is 90%.

    Low: 52 °F

    Rain

  • Thursday

    Thursday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 59.

    High: 59 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Tonight
Showers, mainly after 3am. Low around 49. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers before 10am, then rain, mainly after 10am. High near 58. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Monday Night
Rain. Low around 48. Breezy, with a south southwest wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Rain. High near 57. East wind around 6 mph becoming south southwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tuesday Night
Rain. Low around 50. South southwest wind around 14 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain. High near 59. Chance of precipitation is 100%.
Wednesday Night
Rain. Low around 52. Chance of precipitation is 90%.
Thursday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 59.
Thursday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 49.
Friday
A slight chance of rain before 10am. Mostly cloudy, with a high near 59.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Saturday
A chance of rain. Mostly cloudy, with a high near 56.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
A chance of rain. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Farmington OR
 45.45°N 122.93°W (Elev. 200 ft)
6:41 pm PST Dec 7, 2025
7pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
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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