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, Portland-Troutdale Airport (KTTD)

Lat: 45.55111°NLon: 122.40889°WElev: 36.0ft.

Overcast

46°F

8°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 07 Dec 09:30 PM PST
Extended Forecast for

4 Miles WNW Gresham 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 likely, mainly after 3am.  Mostly cloudy, with a low around 50. South wind around 9 mph.  Chance of precipitation is 70%.

    Low: 50 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers before 10am, then rain, mainly after 10am.  High near 56. Windy, with a south southwest wind 17 to 22 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Showers and
    Windy

  • Monday Night

    Monday Night: Rain.  Low around 48. Windy, with a south southwest wind 21 to 23 mph, with gusts as high as 38 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 48 °F

    Rain and
    Windy

  • Tuesday

    Tuesday: Rain.  High near 57. East northeast wind 8 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 18 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 57 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 51. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 51 °F

    Rain and
    Breezy

  • Wednesday

    Wednesday: Rain.  High near 57. Breezy.  Chance of precipitation is 100%.

    High: 57 °F

    Rain and
    Breezy

  • Wednesday Night

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

    Low: 52 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 4pm.  Cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

Detailed Forecast

Tonight
Showers likely, mainly after 3am. Mostly cloudy, with a low around 50. South wind around 9 mph. Chance of precipitation is 70%.
Monday
Showers before 10am, then rain, mainly after 10am. High near 56. Windy, with a south southwest wind 17 to 22 mph, with gusts as high as 36 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. Windy, with a south southwest wind 21 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Rain. High near 57. East northeast wind 8 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
Rain. Low around 51. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday
Rain. High near 57. Breezy. Chance of precipitation is 100%.
Wednesday Night
Rain. Low around 52. Chance of precipitation is 90%.
Thursday
Rain, mainly before 4pm. Cloudy, with a high near 58.
Thursday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 50.
Friday
A slight chance of rain before 4pm. Mostly cloudy, with a high near 58.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Saturday
A chance of rain. Mostly cloudy, with a high near 55.
Saturday Night
Rain likely. Mostly cloudy, with a low around 46.
Sunday
Rain likely. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Gresham OR
 45.53°N 122.52°W (Elev. 299 ft)
9:41 pm PST Dec 7, 2025
9pm 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