National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Mostly Cloudy

39°F

4°C

Humidity 56%
Wind Speed Vrbl 6 mph
Barometer 30.11 in
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 7 Dec 11:15 am EST
Extended Forecast for

4 Miles NE Unionville PA

  • Today

    Today: Partly sunny, with a high near 40. Northeast wind around 5 mph becoming southwest in the afternoon.

    High: 40 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 23. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 20 mph.

    Low: 23 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 31. North wind 5 to 15 mph.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12. North wind around 5 mph becoming calm in the evening.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 45. Chance of precipitation is 40%.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 40. Northeast wind around 5 mph becoming southwest in the afternoon.
Tonight
Partly cloudy, with a low around 23. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 20 mph.
Monday
Partly sunny, with a high near 31. North wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 12. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 33. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
A chance of rain. Cloudy, with a high near 45. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Partly sunny, with a high near 42.
Thursday Night
A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.
Friday Night
A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Unionville PA
 39.93°N 75.68°W (Elev. 226 ft)
Last Update:
6:32 am EST Dec 7, 2025
Forecast Valid:
11am EST Dec 7, 2025-6pm EST Dec 13, 2025
 
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