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.

Mostly Cloudy

73°F

23°C

Humidity 81%
Wind Speed W 5 mph
Barometer 30.11 in (1019.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 19 May 6:54 am EDT
Extended Forecast for

Wynnewood PA

Heat Advisory May 19, 07:05am until May 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory May 19, 07:05am until May 20, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 94. West wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. North wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, mainly between 8am and 2pm. Partly sunny, with a high near 69. North wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers. Low around 49. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

Detailed Forecast

Today
Mostly sunny and hot, with a high near 97. West wind 5 to 15 mph.
Tonight
Partly cloudy, with a low around 73. Southwest wind 5 to 10 mph.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Increasing clouds, with a high near 94. West wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. North wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly between 8am and 2pm. Partly sunny, with a high near 69. North wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Friday Night
Showers. Low around 49. Chance of precipitation is 80%.
Saturday
Showers. High near 63. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 54. Chance of precipitation is 80%.
Sunday
Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Memorial Day
Mostly cloudy, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Wynnewood PA
 39.99°N 75.27°W (Elev. 226 ft)
Last Update:
4:07 am EDT May 19, 2026
Forecast Valid:
7am EDT May 19, 2026-6pm EDT May 25, 2026
 
Forecast Discussion
 
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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