Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

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

Overcast

43°F

6°C

Humidity 81%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 01 Dec 11:50 PM PST
Extended Forecast for

3 Miles ENE Troutdale OR

  • Overnight

    Overnight: A 20 percent chance of rain after 1am.  Cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: Rain likely, mainly before 10am.  Mostly cloudy, with a high near 48. Light southwest wind.  Chance of precipitation is 60%.

    High: 48 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain after 4am.  Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely, mainly after 10am.  Cloudy, with a high near 48. Chance of precipitation is 60%.

    High: 48 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely.  Cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Rain Likely

  • Friday

    Friday: Rain before 4pm, then showers and possibly a thunderstorm after 4pm.  Cloudy, with a high near 54.

    High: 54 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm.  Cloudy, with a low around 48.

    Low: 48 °F

    Showers

Detailed Forecast

Overnight
A 20 percent chance of rain after 1am. Cloudy, with a low around 39. Calm wind.
Tuesday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 48. Light southwest wind. Chance of precipitation is 60%.
Tuesday Night
Mostly cloudy, with a low around 38. Calm wind.
Wednesday
Mostly cloudy, with a high near 48. Calm wind.
Wednesday Night
A 30 percent chance of rain after 4am. Mostly cloudy, with a low around 39. Calm wind.
Thursday
Rain likely, mainly after 10am. Cloudy, with a high near 48. Chance of precipitation is 60%.
Thursday Night
Rain likely. Cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Cloudy, with a high near 54.
Friday Night
Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Cloudy, with a low around 48.
Saturday
Rain. Cloudy, with a high near 53.
Saturday Night
Rain. Mostly cloudy, with a low around 46.
Sunday
Rain. Cloudy, with a high near 53. Breezy.
Sunday Night
Rain likely. Mostly cloudy, with a low around 45.
Monday
Rain likely. Cloudy, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Troutdale OR
 45.57°N 122.34°W (Elev. 135 ft)
11:40 pm PST Dec 1, 2025
12am PST Dec 2, 2025-6pm PST Dec 8, 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