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

62°F

17°C

Humidity 59%
Wind Speed W 7 mph
Barometer 29.86 in
Dewpoint 47°F (8°C)
Visibility 9.00 mi
Last update 20 Jun 5:35 am EDT
Extended Forecast for

Bart PA

  • Today

    Today: Mostly sunny, with a high near 80. West wind 11 to 15 mph, with gusts as high as 28 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. West wind 5 to 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. West wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of rain after 2am. Mostly cloudy, with a low around 64. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 64 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday

    Monday: Rain, with thunderstorms also possible after 11am. High near 79. Southeast wind 11 to 15 mph becoming south in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 79 °F

    Rain

  • Monday Night

    Monday Night: Rain likely and possibly a thunderstorm before 11pm, then rain likely between 11pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 80. West wind 11 to 15 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 59. West wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 82. West wind 7 to 11 mph, with gusts as high as 20 mph.
Sunday Night
A chance of rain after 2am. Mostly cloudy, with a low around 64. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, with thunderstorms also possible after 11am. High near 79. Southeast wind 11 to 15 mph becoming south in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain likely and possibly a thunderstorm before 11pm, then rain likely between 11pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 80.
Wednesday Night
A chance of showers after 2am. Mostly clear, with a low around 61. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bart PA
 39.95°N 76.09°W (Elev. 673 ft)
Last Update:
5:26 am EDT Jun 20, 2026
Forecast Valid:
5am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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