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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Partly Cloudy

67°F

19°C

Humidity 87%
Wind Speed Calm
Barometer 29.99 in (1015.3 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 24 Aug 4:54 am EDT
Extended Forecast for

Chester PA

Coastal Flood Advisory August 24, 05:23am until August 24, 06:00am
Click here for hazard details and duration
...
  •  
    Coastal Flood Advisory August 24, 05:23am until August 24, 06:00am

    NOW until 6:00am Sun

    Coastal Flood Advisory

  • Today

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 83. Light west wind increasing to 5 to 10 mph in the morning.

    High: 83 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Northwest wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. West wind around 5 mph.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 84. Light and variable wind becoming south 5 to 10 mph in the morning.
Tonight
A chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, then gradually becoming sunny, with a high near 83. Light west wind increasing to 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 61. Northwest wind around 5 mph.
Tuesday
Sunny, with a high near 78. West wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chester PA
 39.85°N 75.35°W (Elev. 3 ft)
Last Update:
4:11 am EDT Aug 24, 2025
Forecast Valid:
5am EDT Aug 24, 2025-6pm EDT Aug 30, 2025
 
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