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

Wintry precipitation expected Friday afternoon into Saturday morning

A storm system will bring accumulating snow, sleet, and freezing rain that can lead to holiday travel disruptions. View this briefing for details. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy

37°F

3°C

Humidity 65%
Wind Speed Calm
Barometer 30.22 in (1023.4 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 25 Dec 2:54 am 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

  • Overnight

    Overnight: Cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Cloudy

  • Christmas Day

    Christmas Day: A slight chance of rain between 9am and 10am. Mostly cloudy, with a high near 47. South wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 47 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Cloudy

  • Friday

    Friday: Snow likely after 1pm. Mostly cloudy, with a high near 30. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

    High: 30 °F

    Mostly Cloudy
    then Snow
    Likely

  • Friday Night

    Friday Night: Snow, possibly mixed with freezing rain. The snow could be heavy at times. Low around 26. East wind around 5 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of 3 to 5 inches possible.

    Low: 26 °F

    Wintry Mix

  • Saturday

    Saturday: A chance of rain, snow, and freezing rain before 1pm, then a chance of snow. Cloudy, with a high near 35. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 35 °F

    Chance Wintry
    Mix

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 1pm. Cloudy, with a high near 39. Chance of precipitation is 50%.

    High: 39 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 34. Chance of precipitation is 80%.

    Low: 34 °F

    Rain

Detailed Forecast

Overnight
Cloudy, with a low around 29. Calm wind.
Christmas Day
A slight chance of rain between 9am and 10am. Mostly cloudy, with a high near 47. South wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 22. North wind around 10 mph, with gusts as high as 20 mph.
Friday
Snow likely after 1pm. Mostly cloudy, with a high near 30. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.
Friday Night
Snow, possibly mixed with freezing rain. The snow could be heavy at times. Low around 26. East wind around 5 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of 3 to 5 inches possible.
Saturday
A chance of rain, snow, and freezing rain before 1pm, then a chance of snow. Cloudy, with a high near 35. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
A chance of rain after 1pm. Cloudy, with a high near 39. Chance of precipitation is 50%.
Sunday Night
Rain. Low around 34. Chance of precipitation is 80%.
Monday
A chance of rain. Partly sunny, with a high near 44. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Mostly sunny, with a high near 36.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merion Station PA
 39.99°N 75.24°W (Elev. 200 ft)
Last Update:
4:11 pm EST Dec 24, 2025
Forecast Valid:
3am EST Dec 25, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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