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

45°F

7°C

Humidity 100%
Wind Speed E 14 mph
Barometer 30.36 in
Dewpoint 45°F (7°C)
Visibility 8.00 mi
Wind Chill39°F (4°C)
Last update 2 Apr 10:35 am EDT
Extended Forecast for

3 Miles NNE Unionville PA

  • Today

    Today: Cloudy, with a high near 49. East wind around 10 mph, with gusts as high as 20 mph.

    High: 49 °F

    Cloudy

  • Tonight

    Tonight: A slight chance of showers between 10pm and midnight. Patchy fog after 3am. Otherwise, cloudy, with a low around 41. East wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Slight Chance
    Showers then
    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 72. Southeast wind 5 to 15 mph becoming southwest in the morning.

    High: 72 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 60. Southwest wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. West wind 5 to 10 mph becoming south in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly between 8am and 2pm. High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 38. Chance of precipitation is 30%.

    Low: 38 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Cloudy, with a high near 49. East wind around 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers between 10pm and midnight. Patchy fog after 3am. Otherwise, cloudy, with a low around 41. East wind 5 to 10 mph. Chance of precipitation is 20%.
Friday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 72. Southeast wind 5 to 15 mph becoming southwest in the morning.
Friday Night
Mostly cloudy, with a low around 60. Southwest wind around 5 mph.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. West wind 5 to 10 mph becoming south in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, mainly between 8am and 2pm. High near 69. Chance of precipitation is 90%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 38. Chance of precipitation is 30%.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 29.
Wednesday
Sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Unionville PA
 39.93°N 75.71°W (Elev. 295 ft)
Last Update:
4:11 am EDT Apr 2, 2026
Forecast Valid:
10am EDT Apr 2, 2026-6pm EDT Apr 8, 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