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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

46°F

8°C

Humidity 66%
Wind Speed NW 8 mph
Barometer 30.03 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 16 Oct 2:55 am EDT
Extended Forecast for

2 Miles WSW Unionville PA

  • Overnight

    Overnight: Clear, with a low around 39. North wind around 10 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 59. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 37. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60. North wind around 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Northwest wind around 5 mph becoming calm.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 70.

    High: 70 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 39. North wind around 10 mph.
Thursday
Sunny, with a high near 59. North wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Clear, with a low around 37. North wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 60. North wind around 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 39. Northwest wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Showers likely after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 62. Chance of precipitation is 40%.
Monday Night
A chance of showers. Partly cloudy, with a low around 46. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Unionville PA
 39.89°N 75.78°W (Elev. 449 ft)
Last Update:
4:09 pm EDT Oct 15, 2025
Forecast Valid:
2am EDT Oct 16, 2025-6pm EDT Oct 22, 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