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Coastal and Marine Hazards This Week

Coastal flooding, dangerous rip currents, high surf, and hazardous marine conditions are expected through this week. View this briefing for more details. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Overcast

61°F

16°C

Humidity 72%
Wind Speed E 14 G 20 mph
Barometer 30.42 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 23 Sep 12:15 pm EDT
Extended Forecast for

Unionville PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 65. Northeast wind around 15 mph, with gusts as high as 30 mph.

    High: 65 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Northeast wind 10 to 15 mph.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 49. North wind 10 to 15 mph.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66. North wind around 15 mph, with gusts as high as 30 mph.

    High: 66 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 52. Chance of precipitation is 20%.

    Low: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers after 8am. Mostly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Partly sunny, with a high near 66. Chance of precipitation is 30%.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 65. Northeast wind around 15 mph, with gusts as high as 30 mph.
Tonight
Partly cloudy, with a low around 48. Northeast wind 10 to 15 mph.
Thursday
Mostly sunny, with a high near 64. Northeast wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 49. North wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 66. North wind around 15 mph, with gusts as high as 30 mph.
Friday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 52. Chance of precipitation is 20%.
Saturday
A chance of showers after 8am. Mostly sunny, with a high near 67. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Sunday
A chance of showers before 2pm. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Unionville PA
 39.89°N 75.72°W (Elev. 400 ft)
Last Update:
4:09 am EDT Sep 23, 2026
Forecast Valid:
12pm EDT Sep 23, 2026-6pm EDT Sep 29, 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