Isaias to Bring Tropical Impacts Across to the East Coast

Isaias is forecast to make landfall tonight in the Carolinas with dangerous storm surge, flash flooding, damaging winds, and isolated tropical tornadoes. Isaias may strengthen briefly prior to landfall, but the impacts will be the same regardless of the categorical definition. Isaias impacts will be felt all along the East Coast as Isaias moves northward through mid-week. Read More >

7-Day Forecast for Latitude 39.96°N and Longitude 75.16°W (Elev. 26 ft) (Text-Only)
NWS Forecast for: Philadelphia PA
Issued by: National Weather Service Philadelphia, PA
Last Update: 3:37 pm EDT Aug 3, 2020
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  • This
    Afternoon

    This Afternoon: A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall.  Partly sunny, with a high near 90. Southwest wind around 10 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain



    High: 90 °F

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall.  Low around 73. South wind 5 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain



    Low: 73 °F

  • Tuesday

    Tuesday: Tropical storm conditions expected. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.  High near 78. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

    Tropical
    Storm
    Conditions
    Expected

    High: 78 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 70. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.  Chance of precipitation is 50%. New rainfall amounts between three quarters and one inch possible.

    Chance
    T-storms


    Low: 70 °F

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 8am.  Mostly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 20%.

    Slight Chance
    T-storms


    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 68.

    Partly Cloudy



    Low: 68 °F

  • Thursday

    Thursday: Partly sunny, with a high near 85.

    Partly Sunny



    High: 85 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

    Chance
    T-storms


    Low: 69 °F

  • Friday

    Friday: A chance of showers and thunderstorms.  Partly sunny, with a high near 85. Chance of precipitation is 50%.

    Chance
    T-storms


    High: 85 °F



  • This Afternoon: A chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 90. Southwest wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after midnight. Some of the storms could produce heavy rainfall. Low around 73. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Tuesday: Tropical storm conditions expected. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 78. Chance of precipitation is 100%. New rainfall amounts between 2 and 3 inches possible.

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Chance of precipitation is 50%. New rainfall amounts between three quarters and one inch possible.

    Wednesday: A slight chance of showers, with thunderstorms also possible after 8am. Mostly sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.

    Wednesday Night: Partly cloudy, with a low around 68.

    Thursday: Partly sunny, with a high near 85.

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

    Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.

    Friday Night: Mostly cloudy, with a low around 70.

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.

    Saturday Night: Partly cloudy, with a low around 69.

    Sunday: Mostly sunny, with a high near 88.

    Sunday Night: Partly cloudy, with a low around 70.

    Monday: A chance of showers and thunderstorms. Mostly sunny, with a high near 89.



    Philadelphia PA
     39.96°N 75.16°W (Elev. 26 ft)

    Visit your local NWS office at: https://www.weather.gov/phi/