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 31%
Wind Speed SW 15 G 25 mph
Barometer 29.97 in (1014.8 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 May 6:54 pm EDT
Extended Forecast for

Chester PA

  • Tonight

    Tonight: A chance of sprinkles before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 63. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 88. West wind around 5 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the afternoon.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 60%.

    High: 95 °F

    Sunny then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of sprinkles before 1am, then a slight chance of showers between 1am and 2am. Partly cloudy, with a low around 63. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 88. West wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm.
Monday
Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. South wind around 5 mph.
Tuesday
Sunny, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chester PA
 39.85°N 75.35°W (Elev. 3 ft)
Last Update:
4:08 pm EDT May 16, 2026
Forecast Valid:
7pm EDT May 16, 2026-6pm EDT May 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation