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.

69°F

21°C

Humidity 73%
Wind Speed NW 16 mph
Barometer 29.87 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 12 Oct 3:15 pm EDT
Extended Forecast for

Gap PASimilar City Names

  • Tonight

    Tonight: Partly cloudy, with a low around 55. West wind 3 to 8 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 77. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. South wind 6 to 10 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 80. West wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 55. North wind around 6 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely before 8pm. Partly cloudy, with a low around 43. Breezy. Chance of precipitation is 60%.

    Low: 43 °F

    Breezy.
    Showers
    Likely then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. West wind 3 to 8 mph.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 77. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 64. South wind 6 to 10 mph.
Wednesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 80. West wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 55. North wind around 6 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Showers likely after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Friday Night
Showers likely before 8pm. Partly cloudy, with a low around 43. Breezy. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 53. Breezy.
Saturday Night
Areas of frost. Otherwise, mostly clear, with a low around 36.
Sunday
Areas of frost. Otherwise, sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
Gap PASimilar City Names
 39.99°N 76.02°W (Elev. 525 ft)
Last Update:
3:03 pm EDT Oct 12, 2026
Forecast Valid:
3pm EDT Oct 12, 2026-6pm EDT Oct 19, 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