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

41°F

5°C

Humidity 61%
Wind Speed E 5 mph
Barometer 30.02 in
Dewpoint 28°F (-2°C)
Visibility 9.00 mi
Wind Chill38°F (3°C)
Last update 15 Feb 11:55 am EST
Extended Forecast for

Exton PA

  • This Afternoon

    This Afternoon: A chance of rain after 3pm, mixing with snow after 5pm. Cloudy, with a high near 43. East wind around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 43 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Rain and snow before 3am, then a slight chance of snow between 3am and 4am. Low around 31. Northeast wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 41. Northeast wind around 5 mph.

    High: 41 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. Calm wind becoming west around 5 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of rain after 3pm, mixing with snow after 5pm. Cloudy, with a high near 43. East wind around 5 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tonight
Rain and snow before 3am, then a slight chance of snow between 3am and 4am. Low around 31. Northeast wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Washington's Birthday
Mostly cloudy, with a high near 41. Northeast wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 30. Calm wind.
Tuesday
Partly sunny, with a high near 48. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 49.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Friday
Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Exton PA
 40.01°N 75.64°W (Elev. 476 ft)
Last Update:
4:14 am EST Feb 15, 2026
Forecast Valid:
12pm EST Feb 15, 2026-6pm EST Feb 21, 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