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.

A Few Clouds

67°F

19°C

Humidity 84%
Wind Speed Calm
Barometer 30.14 in (1020.4 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 18 May 4:54 am EDT
Extended Forecast for

Philadelphia PA

Heat Advisory May 18, 12:00pm until May 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 94. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. Southwest wind 5 to 10 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 97. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. Southwest wind around 10 mph.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 94. West wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 58. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers

  • Thursday

    Thursday: A chance of showers between 8am and 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 94. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 70. Southwest wind 5 to 10 mph.
Tuesday
Mostly sunny and hot, with a high near 97. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 75. Southwest wind around 10 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 94. West wind 5 to 15 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 58. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers between 8am and 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Saturday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Sunday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Philadelphia PA
 39.96°N 75.16°W (Elev. 26 ft)
Last Update:
4:09 am EDT May 18, 2026
Forecast Valid:
4am EDT May 18, 2026-6pm EDT May 24, 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