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.

54°F

12°C

Humidity 35%
Wind Speed NE 8 mph
Barometer 30.60 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 18 Oct 12:15 pm EDT
Extended Forecast for

Exton PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. North wind around 5 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 2am. Otherwise, clear, with a low around 34. Calm wind becoming north around 5 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Monday

    Monday: Areas of frost before 10am. Otherwise, increasing clouds, with a high near 62. Northeast wind 5 to 10 mph.

    High: 62 °F

    Areas Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. North wind 5 to 10 mph.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. North wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 58. North wind around 5 mph.
Tonight
Areas of frost after 2am. Otherwise, clear, with a low around 34. Calm wind becoming north around 5 mph.
Monday
Areas of frost before 10am. Otherwise, increasing clouds, with a high near 62. Northeast wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 44. North wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 66. North wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Exton PA
 40.03°N 75.61°W (Elev. 394 ft)
Last Update:
6:31 am EDT Oct 18, 2026
Forecast Valid:
12pm EDT Oct 18, 2026-6pm EDT Oct 24, 2026
 
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