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

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

A Few Clouds

51°F

11°C

Humidity 33%
Wind Speed NW 17 G 26 mph
Barometer 30.19 in (1022.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 24 Dec 1:54 pm EST
Extended Forecast for

Merion Station PA

Winter Storm Watch December 26, 01:00pm until December 27, 10:00am
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 29. North wind around 5 mph becoming calm.

    Low: 29 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: A slight chance of rain and snow before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 45. South wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23. North wind 5 to 10 mph.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Snow likely after 1pm. Mostly cloudy, with a high near 32. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    High: 32 °F

    Mostly Cloudy
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow, possibly mixed with freezing rain and sleet before 10pm, then snow and freezing rain. Low around 26. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 26 °F

    Wintry Mix

  • Saturday

    Saturday: A chance of rain, snow, and freezing rain before 1pm. Cloudy, with a high near 36. Chance of precipitation is 50%.

    High: 36 °F

    Chance Wintry
    Mix

  • Saturday Night

    Saturday Night: Cloudy, with a low around 30.

    Low: 30 °F

    Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 42. Chance of precipitation is 80%.

    High: 42 °F

    Chance Rain
    then Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 44. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 29. North wind around 5 mph becoming calm.
Christmas Day
A slight chance of rain and snow before 10am, then a slight chance of rain between 10am and 1pm. Mostly cloudy, with a high near 45. South wind 5 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 23. North wind 5 to 10 mph.
Friday
Snow likely after 1pm. Mostly cloudy, with a high near 32. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Friday Night
Snow, possibly mixed with freezing rain and sleet before 10pm, then snow and freezing rain. Low around 26. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday
A chance of rain, snow, and freezing rain before 1pm. Cloudy, with a high near 36. Chance of precipitation is 50%.
Saturday Night
Cloudy, with a low around 30.
Sunday
Rain, mainly after 1pm. High near 42. Chance of precipitation is 80%.
Sunday Night
Rain likely, mainly before 1am. Cloudy, with a low around 29. Chance of precipitation is 70%.
Monday
A chance of rain. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 30.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merion Station PA
 40.01°N 75.23°W (Elev. 240 ft)
Last Update:
4:14 am EST Dec 24, 2025
Forecast Valid:
2pm EST Dec 24, 2025-6pm EST Dec 30, 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