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

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

A Few Clouds

35°F

2°C

Humidity 59%
Wind Speed N 13 G 24 mph
Barometer 30.15 in (1021.1 mb)
Dewpoint 22°F (-6°C)
Visibility 8.00 mi
Wind Chill26°F (-3°C)
Last update 8 Dec 4:54 am EST
Extended Forecast for

Wynnewood PA

  • Today

    Today: Increasing clouds, with a high near 31. North wind 10 to 15 mph.

    High: 31 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 14. North wind around 5 mph.

    Low: 14 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 34. Calm wind becoming south around 5 mph in the afternoon.

    High: 34 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. Southwest wind 5 to 10 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow before 10am, then rain likely.  Mostly cloudy, with a high near 45. South wind around 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 1am.  Mostly cloudy, with a low around 32. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 31. North wind 10 to 15 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 14. North wind around 5 mph.
Tuesday
Increasing clouds, with a high near 34. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 29. Southwest wind 5 to 10 mph.
Wednesday
A chance of rain and snow before 10am, then rain likely. Mostly cloudy, with a high near 45. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 38.
Friday Night
A chance of snow. Mostly cloudy, with a low around 24. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
Wynnewood PA
 39.99°N 75.27°W (Elev. 226 ft)
4:10 am EST Dec 8, 2025
5am EST Dec 8, 2025-6pm EST Dec 14, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database