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

Coastal and Marine Hazards This Week

Coastal flooding, dangerous rip currents, high surf, and hazardous marine conditions are expected through this week. View this briefing for more details. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Overcast

63°F

17°C

Humidity 70%
Wind Speed NE 9 G 21 mph
Barometer 30.31 in (1026.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 22 Sep 9:54 pm EDT
Extended Forecast for

Merion Station PA

Coastal Flood Advisory September 23, 10:00pm until September 25, 04:00am
Click here for hazard details and duration
Coastal Flood Advisory

  • Tonight

    Tonight: A slight chance of showers after 1am. Cloudy, with a low around 54. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Cloudy then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 67. Breezy, with a northeast wind 15 to 20 mph.

    High: 67 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Northeast wind 10 to 15 mph.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Northeast wind 10 to 15 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52. North wind around 10 mph.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers after 1am. Cloudy, with a low around 54. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 67. Breezy, with a northeast wind 15 to 20 mph.
Wednesday Night
Partly cloudy, with a low around 52. Northeast wind 10 to 15 mph.
Thursday
Mostly sunny, with a high near 66. Northeast wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around 52. North wind around 10 mph.
Friday
Partly sunny, with a high near 69.
Friday Night
Mostly cloudy, with a low around 55.
Saturday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 56.
Monday
Partly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merion Station PA
 39.99°N 75.24°W (Elev. 200 ft)
Last Update:
4:10 pm EDT Sep 22, 2026
Forecast Valid:
10pm EDT Sep 22, 2026-6pm EDT Sep 29, 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