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

71°F

22°C

Humidity 76%
Wind Speed Vrbl 3 mph
Barometer 30.15 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 18 May 12:15 am EDT
Extended Forecast for

4 Miles SSW Narvon PA

  • Overnight

    Overnight: Partly cloudy, with a low around 65. Light south wind.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 89. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Isolated showers and thunderstorms between 9pm and 10pm. Mostly clear, with a low around 68. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Isolated
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 90. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. South wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Sunny then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 65. Light south wind.
Monday
Sunny, with a high near 89. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Isolated showers and thunderstorms between 9pm and 10pm. Mostly clear, with a low around 68. South wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 90. Southwest wind 7 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 69. South wind 8 to 13 mph, with gusts as high as 21 mph.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 53. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Narvon PA
 40.07°N 76.01°W (Elev. 883 ft)
Last Update:
8:06 pm EDT May 17, 2026
Forecast Valid:
1am EDT May 18, 2026-6pm EDT May 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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