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

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

81°F

27°C

Humidity 58%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 4 Aug 6:35 pm EDT
Extended Forecast for

2 Miles S Bart PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. Light east wind.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 80. Southeast wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 9pm, then a chance of showers between 9pm and 2am. Some of the storms could produce heavy rainfall. Low around 71. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Heavy Rain
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 86. South wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Partly Sunny
    then Heavy
    Rain

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. Southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Heavy Rain

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 87. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Sunny then
    Heavy Rain

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Heavy Rain
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 67. Light east wind.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Some of the storms could produce heavy rainfall. High near 80. Southeast wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 9pm, then a chance of showers between 9pm and 2am. Some of the storms could produce heavy rainfall. Low around 71. South wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 86. South wind 7 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 72. Southwest wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 87. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Sunny, with a high near 87.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Bart PA
 39.9°N 76.07°W (Elev. 656 ft)
Last Update:
2:21 pm EDT Aug 4, 2026
Forecast Valid:
6pm EDT Aug 4, 2026-6pm EDT Aug 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation