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.

Mostly Cloudy and Breezy

55°F

13°C

Humidity 31%
Wind Speed NW 21 G 29 mph
Barometer 29.94 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 3 May 1:55 pm EDT
Extended Forecast for

Exton PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 61. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 61 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 43. Southwest wind around 5 mph.

    Low: 43 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, mainly after 8am. High near 71. Chance of precipitation is 80%.

    High: 71 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 61. Northwest wind around 15 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 43. Southwest wind around 5 mph.
Monday
Sunny, with a high near 73. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 56. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 81. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Wednesday
Showers, mainly after 8am. High near 71. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 51. Chance of precipitation is 80%.
Thursday
Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 2am. Partly cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 43.
Saturday
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Exton PA
 40.03°N 75.64°W (Elev. 299 ft)
Last Update:
4:08 am EDT May 3, 2026
Forecast Valid:
2pm EDT May 3, 2026-6pm EDT May 9, 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