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

40°F

4°C

Humidity 86%
Wind Speed SE 6 mph
Barometer 30.38 in (1028.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 7 Mar 12:54 am EST
Extended Forecast for

Marcus Hook PA

  • Overnight

    Overnight: A slight chance of rain before 2am, then a slight chance of rain after 5am. Patchy fog after 2am. Otherwise, cloudy, with a low around 39. Calm wind. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Saturday

    Saturday: A chance of rain before 7am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly between 3am and 4am. Mostly cloudy, with a temperature rising to around 60 by 2am. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F⇑

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 65. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. West wind around 5 mph.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Partly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A slight chance of rain before 2am, then a slight chance of rain after 5am. Patchy fog after 2am. Otherwise, cloudy, with a low around 39. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of rain before 7am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Showers likely, mainly between 3am and 4am. Mostly cloudy, with a temperature rising to around 60 by 2am. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers. Mostly cloudy, with a high near 65. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 43. West wind around 5 mph.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
A chance of showers after 1am. Partly cloudy, with a low around 54. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 55. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marcus Hook PA
 39.83°N 75.41°W (Elev. 46 ft)
Last Update:
12:17 am EST Mar 7, 2026
Forecast Valid:
1am EST Mar 7, 2026-6pm EDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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