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.

Fair

30°F

-1°C

Humidity 56%
Wind Speed NW 10 mph
Barometer 30.14 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 13 Feb 3:35 pm EST
Extended Forecast for

3 Miles NNE Unionville PA

  • Tonight

    Tonight: Increasing clouds, with a low around 20. West wind around 5 mph.

    Low: 20 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 44. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 25. Calm wind.

    Low: 25 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A slight chance of rain and snow between 1pm and 4pm, then a slight chance of snow after 4pm. Mostly cloudy, with a high near 41. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 41 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of snow, mainly before 1am. Mostly cloudy, with a low around 30. East wind around 5 mph becoming calm. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow

  • Washington's Birthday

    Washington's Birthday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 20. West wind around 5 mph.
Saturday
Sunny, with a high near 44. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 25. Calm wind.
Sunday
A slight chance of rain and snow between 1pm and 4pm, then a slight chance of snow after 4pm. Mostly cloudy, with a high near 41. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
A chance of snow, mainly before 1am. Mostly cloudy, with a low around 30. East wind around 5 mph becoming calm. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Washington's Birthday
Mostly cloudy, with a high near 44.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A chance of rain. Mostly cloudy, with a high near 50. Chance of precipitation is 50%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Thursday
A chance of rain. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 40%.
Friday
A chance of rain. Partly sunny, with a high near 44. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Unionville PA
 39.93°N 75.71°W (Elev. 295 ft)
Last Update:
4:15 pm EST Feb 13, 2026
Forecast Valid:
4pm EST Feb 13, 2026-6pm EST Feb 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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