National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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 - Wings Field Airport (KLOM)

Lat: 40.14°NLon: 75.27°WElev: 282ft.

Overcast

40°F

4°C

Humidity 56%
Wind Speed SW 6 mph
Barometer 30.06 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 7 Dec 3:15 pm EST
Extended Forecast for

Devon PA

  • Tonight

    Tonight: Partly cloudy, with a low around 24. Southwest wind 5 to 15 mph becoming north after midnight.

    Low: 24 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 30. North wind 10 to 15 mph.

    High: 30 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. North wind around 5 mph becoming calm after midnight.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. Southwest wind 5 to 10 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.

    High: 44 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.

    Low: 29 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 24. Southwest wind 5 to 15 mph becoming north after midnight.
Monday
Partly sunny, with a high near 30. North wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 13. North wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 33. Light and variable wind becoming south 5 to 10 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 28. Southwest wind 5 to 10 mph.
Wednesday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Partly sunny, with a high near 42.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 30.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 28.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Devon PA
 40.03°N 75.4°W (Elev. 397 ft)
Last Update:
6:32 am EST Dec 7, 2025
Forecast Valid:
3pm EST Dec 7, 2025-6pm EST Dec 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation