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.

Mostly Cloudy

82°F

28°C

Humidity 47%
Wind Speed S 5 mph
Barometer 30.10 in (1019.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 4 Apr 2:54 pm EDT
Extended Forecast for

Marcus Hook PA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 80. East wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers after 4am. Mostly cloudy, with a low around 53. East wind 5 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 70. South wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Northwest wind around 10 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 57. West wind 5 to 10 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 29.

    Low: 29 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 80. East wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers after 4am. Mostly cloudy, with a low around 53. East wind 5 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 70. South wind 10 to 15 mph becoming west in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 41. Northwest wind around 10 mph.
Monday
Sunny, with a high near 57. West wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Clear, with a low around 29.
Wednesday
Sunny, with a high near 52.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marcus Hook PA
 39.81°N 75.42°W (Elev. 0 ft)
Last Update:
2:53 pm EDT Apr 4, 2026
Forecast Valid:
3pm EDT Apr 4, 2026-6pm EDT Apr 11, 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