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.

Mostly Cloudy

82°F

28°C

Humidity 47%
Wind Speed S 6 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 21 Aug 5:54 pm EDT
Extended Forecast for

Philadelphia PA

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Calm wind.

    Low: 66 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 79. Calm wind becoming east around 5 mph in the afternoon.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. East wind around 5 mph becoming calm.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 11am.  Mostly sunny, with a high near 84. Light and variable wind becoming west 5 to 10 mph in the afternoon.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. West wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °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 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 66. Calm wind.
Saturday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 79. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. East wind around 5 mph becoming calm. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 84. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 65. West wind around 5 mph.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Philadelphia PA
 39.94°N 75.19°W (Elev. 59 ft)
4:08 pm EDT Aug 21, 2026
6pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database