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.

Overcast

67°F

19°C

Humidity 100%
Wind Speed W 6 mph
Barometer 29.61 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 28 Jul 9:15 pm EDT
Extended Forecast for

3 Miles S Blue Ball PA

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 11pm. Patchy fog between midnight and 1am. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Chance
    T-storms then
    Slight Chance
    T-storms and
    Patchy Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 63. Northwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. North wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 62. Northwest wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 11pm. Patchy fog between midnight and 1am. Otherwise, mostly cloudy, with a low around 64. Southeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Mostly sunny, with a high near 79. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 63. Northwest wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. North wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 62. Northwest wind 5 to 7 mph. Chance of precipitation is 30%.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
A chance of showers after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Monday
A chance of showers. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Blue Ball PA
 40.08°N 76.03°W (Elev. 705 ft)
Last Update:
8:11 pm EDT Jul 28, 2026
Forecast Valid:
9pm EDT Jul 28, 2026-6pm EDT Aug 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation