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

30°F

-1°C

Humidity 73%
Wind Speed Vrbl 3 mph
Barometer 30.26 in
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 19 Mar 6:15 am EDT
Extended Forecast for

3 Miles NE Unionville PA

  • Today

    Today: Partly sunny, with a high near 50. South wind 5 to 10 mph.

    High: 50 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. South wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain after 2pm. Mostly sunny, with a high near 61. Light southwest wind becoming south 10 to 15 mph in the morning. Chance of precipitation is 20%.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 45. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain before 8am. Mostly sunny, with a high near 64. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 50. South wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 32. South wind around 5 mph becoming calm in the evening.
Friday
A slight chance of rain after 2pm. Mostly sunny, with a high near 61. Light southwest wind becoming south 10 to 15 mph in the morning. Chance of precipitation is 20%.
Friday Night
Rain likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 45. South wind 5 to 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain before 8am. Mostly sunny, with a high near 64. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 68.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Unionville PA
 39.93°N 75.68°W (Elev. 226 ft)
Last Update:
5:37 am EDT Mar 19, 2026
Forecast Valid:
6am EDT Mar 19, 2026-6pm EDT Mar 25, 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