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

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

55°F

13°C

Humidity 87%
Wind Speed W 7 mph
Barometer 30.26 in (1024.7 mb)
Dewpoint 51°F (11°C)
Visibility 8.00 mi
Wind Chill53°F (12°C)
Last update 3 Apr 12:54 pm EDT
Extended Forecast for

Marcus Hook PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 73. Southwest wind 10 to 15 mph.

    High: 73 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph.

    Low: 58 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 82. Southwest wind 5 to 10 mph becoming southeast in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Patchy Fog
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 73. South wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 73. Southwest wind 10 to 15 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph.
Saturday
A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 82. Southwest wind 5 to 10 mph becoming southeast in the morning. Chance of precipitation is 30%. 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 60. Southeast wind around 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers. High near 73. South wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 32.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marcus Hook PA
 39.81°N 75.42°W (Elev. 0 ft)
Last Update:
1:17 pm EDT Apr 3, 2026
Forecast Valid:
1pm EDT Apr 3, 2026-6pm EDT Apr 9, 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