Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Thunderstorm Light Rain Fog/Mist

66°F

19°C

Humidity 93%
Wind Speed N 7 mph
Barometer 29.83 in (1010.0 mb)
Dewpoint 64°F (18°C)
Visibility 4.00 mi
Last update 23 Aug 3:54 am EDT
Extended Forecast for

Wynnewood PA

Flash Flood Warning until August 23, 08:00am
Click here for hazard details and duration
Flash Flood Warning
  •  
    Flash Flood Warning until August 23, 08:00am

    NOW until 8:00am Sun

    Flash Flood Warning

  • Overnight

    Low: 68 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am.  Partly sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63. West wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. West wind 5 to 10 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. West wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Cloudy, with a low around 68. Southeast wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms before 7am. Partly sunny, with a high near 82. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 63. West wind around 5 mph.
Monday
Sunny, with a high near 80. West wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 61. West wind around 5 mph.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 85.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Wynnewood PA
 39.99°N 75.27°W (Elev. 226 ft)
4:08 am EDT Aug 23, 2026
4am EDT Aug 23, 2026-6pm EDT Aug 29, 2026
 
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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