Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Philadelphia, Northeast Philadelphia Airport (KPNE)

Lat: 40.08°NLon: 75.01°WElev: 118ft.

Mostly Cloudy

31°F

-1°C

Humidity 59%
Wind Speed S 8 mph
Barometer 30.03 in (1017.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 9 Dec 7:54 pm EST
Extended Forecast for

Riverton NJ

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Southwest wind 5 to 10 mph.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain, mainly after 1pm.  High near 45. South wind 10 to 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Slight Chance
    Rain then
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 7pm.  Cloudy, then gradually becoming partly cloudy, with a low around 31. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 38. West wind around 15 mph, with gusts as high as 30 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 26. West wind 10 to 15 mph.

    Low: 26 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of snow after 1pm.  Mostly sunny, with a high near 38. Chance of precipitation is 20%.

    High: 38 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A chance of snow.  Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of snow after 1am.  Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 27. Southwest wind 5 to 10 mph.
Wednesday
Rain, mainly after 1pm. High near 45. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 31. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Mostly sunny, with a high near 38. West wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 26. West wind 10 to 15 mph.
Friday
A slight chance of snow after 1pm. Mostly sunny, with a high near 38. Chance of precipitation is 20%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 42.
Saturday Night
A chance of snow after 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Sunday
A chance of snow before 1pm. Partly sunny, with a high near 36. Chance of precipitation is 40%.
Sunday Night
Mostly clear, with a low around 17.
Monday
Mostly sunny, with a high near 31.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton NJ
 40.03°N 75°W (Elev. 10 ft)
4:09 pm EST Dec 9, 2025
8pm EST Dec 9, 2025-6pm EST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database