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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

72°F

22°C

Humidity 87%
Wind Speed N 9 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 28 Aug 12:54 am EDT
Extended Forecast for

Philadelphia PA

Flood Watch August 28, 01:14am until August 28, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch August 28, 01:14am until August 28, 04:00am

    NOW until 4:00am Fri

    Flood Watch

  • Overnight

    Low: 70 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 68. Calm wind becoming north around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. North wind around 5 mph becoming calm.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 86. Calm wind becoming north around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 68. Calm wind becoming north around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 86. North wind around 5 mph becoming calm.
Saturday Night
Mostly clear, with a low around 68. Calm wind.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 90.
Monday Night
Mostly cloudy, with a low around 74.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Wednesday
A chance of showers. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Philadelphia PA
 39.96°N 75.16°W (Elev. 26 ft)
Last Update:
4:08 pm EDT Aug 27, 2026
Forecast Valid:
1am EDT Aug 28, 2026-6pm EDT Sep 3, 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