Remnants of Arthur and Heavy Rainfall Across the South; Severe Weather for the East

Potential life threatening flash flooding across the northern Gulf Coast states as the remnants of Arthur track across the area. Remember, turn around - don't drown. In addition, severe thunderstorms with tornadoes are possible with the circulation of this storm. The threat for more severe thunderstorms will occur across portions of the Northeast, mid-Atlantic and central Appalachian's. Read More >

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Mostly Cloudy and Windy

91°F

33°C

Humidity 44%
Wind Speed SW 26 G 46 mph
Barometer 29.55 in (1000.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 18 Jun 2:54 pm EDT
Extended Forecast for

Marcus Hook PA

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms.  Sunny, with a high near 90. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph.  Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 68. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Cloudy through mid morning, then gradual clearing, with a high near 82. West wind 5 to 10 mph.

    High: 82 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: Clear, with a low around 64. West wind around 5 mph.

    Low: 64 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83. West wind around 10 mph, with gusts as high as 25 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am.  Partly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm.  High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Sunny, with a high near 90. Breezy, with a southwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Tonight
Increasing clouds, with a low around 68. West wind 5 to 10 mph, with gusts as high as 20 mph.
Juneteenth
Cloudy through mid morning, then gradual clearing, with a high near 82. West wind 5 to 10 mph.
Friday Night
Clear, with a low around 64. West wind around 5 mph.
Saturday
Sunny, with a high near 83. West wind around 10 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 85.
Sunday Night
A chance of showers after 2am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 65. Chance of precipitation is 80%.
Tuesday
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A chance of showers. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Marcus Hook PA
 39.83°N 75.41°W (Elev. 46 ft)
2:27 pm EDT Jun 18, 2026
3pm EDT Jun 18, 2026-6pm EDT Jun 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database