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

Heavy Rainfall in the East Wednesday; Hot Temperatures Continue in Coastal Southern California

Heavy to excessive rainfall may lead to flooding Wednesday over southwest Pennsylvania into northern West Virginia, and western Maryland. Flood Watches have been issued. An extended period of hot weather will continue for parts of coastal southern California including Los Angeles through Thursday. Heat Advisories remain in effect. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

60°F

16°C

Humidity 62%
Wind Speed SE 7 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 20 May 9:54 pm EDT
Extended Forecast for

Philadelphia PA

  • Tonight

    Tonight: A chance of rain after 5am. Mostly cloudy, with a low around 54. Calm wind becoming southeast around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Periods of rain, mainly after 8am. High near 59. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Rain

  • Wednesday Night

    Wednesday Night: Periods of rain and possibly a thunderstorm before 11pm, then periods of rain between 11pm and 2am, then periods of rain and possibly a thunderstorm after 2am. Patchy fog after 11pm. Low around 52. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Rain and
    Patchy Fog

  • Thursday

    Thursday: Periods of rain before 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 61. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 61 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 51. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 48. Chance of precipitation is 30%.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of rain after 5am. Mostly cloudy, with a low around 54. Calm wind becoming southeast around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Periods of rain, mainly after 8am. High near 59. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Periods of rain and possibly a thunderstorm before 11pm, then periods of rain between 11pm and 2am, then periods of rain and possibly a thunderstorm after 2am. Patchy fog after 11pm. Low around 52. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
Periods of rain before 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 61. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 51. North wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 63. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 48. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 54.
Memorial Day
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Philadelphia PA
 39.96°N 75.18°W (Elev. 98 ft)
Last Update:
6:14 pm EDT May 20, 2025
Forecast Valid:
9pm EDT May 20, 2025-6pm EDT May 27, 2025
 
Forecast Discussion
 
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Additional Resources

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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