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.

52°F

11°C

Humidity 100%
Wind Speed Calm
Barometer 29.41 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 12 Nov 7:35 pm EST
Extended Forecast for

3 Miles NNW Unionville PA

  • Tonight

    Tonight: A chance of showers before 1am, then rain likely, mainly after 4am. Mostly cloudy, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Rain Likely

  • Friday

    Friday: Rain likely, mainly before 2pm. Cloudy, with a high near 44. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Rain Likely

  • Friday Night

    Friday Night: A slight chance of rain before 10pm. Mostly cloudy, with a low around 30. Northwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 46. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 46 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32. West wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers before 1am, then rain likely, mainly after 4am. Mostly cloudy, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely, mainly before 2pm. Cloudy, with a high near 44. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 30. Northwest wind around 5 mph. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 46. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 32. West wind around 5 mph.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 30.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Clear, with a low around 31.
Thursday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Unionville PA
 39.94°N 75.77°W (Elev. 299 ft)
Last Update:
5:05 pm EST Nov 12, 2026
Forecast Valid:
7pm EST Nov 12, 2026-6pm EST Nov 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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