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

Heat Continues Across the Central and Western U.S.; Tracking Hazardous Weather Across the Northern U.S.

Early-season record warmth will persist across portions of the western and central U.S. through mid week, with high temperatures approaching 90 degrees from Texas to the Ohio Valley. Rain and mountain snow are possible across the Pacific Northwest Wednesday, with Severe Thunderstorms and wintry weather expected across the Northeast Thursday and Friday. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

A Few Clouds

32°F

0°C

Humidity 64%
Wind Speed N 8 mph
Barometer 30.37 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 24 Mar 7:15 am EDT
Extended Forecast for

Unionville PA

  • Today

    Today: Sunny, with a high near 48. North wind 5 to 10 mph becoming west in the afternoon.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 33. Southwest wind around 5 mph becoming calm.

    Low: 33 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 53. South wind 5 to 10 mph.

    High: 53 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. South wind around 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 67. Southwest wind 5 to 15 mph.

    High: 67 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain, mainly after 2am. Low around 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Chance Rain
    then Rain

  • Friday

    Friday: Rain, mainly before 8am. High near 58. Chance of precipitation is 80%.

    High: 58 °F

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 48. North wind 5 to 10 mph becoming west in the afternoon.
Tonight
Increasing clouds, with a low around 33. Southwest wind around 5 mph becoming calm.
Wednesday
Mostly cloudy, with a high near 53. South wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 42. South wind around 5 mph.
Thursday
Partly sunny, with a high near 67. Southwest wind 5 to 15 mph.
Thursday Night
Rain, mainly after 2am. Low around 49. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 8am. High near 58. Chance of precipitation is 80%.
Friday Night
Partly cloudy, with a low around 26.
Saturday
Sunny, with a high near 44.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Unionville PA
 39.89°N 75.75°W (Elev. 400 ft)
Last Update:
4:08 am EDT Mar 24, 2026
Forecast Valid:
7am EDT Mar 24, 2026-6pm EDT Mar 30, 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