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 95%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 20 May 11:35 pm EDT
Extended Forecast for

Gap PA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then showers likely between 2am and 4am, then a chance of rain after 4am. Cloudy, with a low around 54. North wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain and possibly a thunderstorm before 2pm, then rain likely. High near 63. North wind around 9 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 63 °F

    Rain

  • Thursday Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 49. East wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Decreasing
    Clouds

  • Friday

    Friday: A chance of showers after 2pm. Mostly cloudy, with a high near 61. East wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers, mainly after 8pm. Low around 47. East wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 2pm. High near 56. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 2am, then showers likely between 2am and 4am, then a chance of rain after 4am. Cloudy, with a low around 54. North wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain and possibly a thunderstorm before 2pm, then rain likely. High near 63. North wind around 9 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Cloudy, then gradually becoming partly cloudy, with a low around 49. East wind around 5 mph becoming calm in the evening.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 61. East wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers, mainly after 8pm. Low around 47. East wind 8 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers, with thunderstorms also possible after 2pm. High near 56. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers. Low around 49. Chance of precipitation is 90%.
Sunday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 58.
Wednesday
Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gap PA
 39.99°N 76.02°W (Elev. 525 ft)
Last Update:
10:12 pm EDT May 20, 2026
Forecast Valid:
11pm EDT May 20, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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