Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fog/Mist

47°F

8°C

Humidity 100%
Wind Speed E 12 mph
Barometer 30.06 in
Dewpoint 47°F (8°C)
Visibility 4.00 mi
Wind Chill42°F (6°C)
Last update 4 Apr 11:55 pm EDT
Extended Forecast for

Downingtown PA

  • Overnight

    Overnight: A chance of showers, mainly after 4am.  Mostly cloudy, with a low around 49. East wind 5 to 10 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms before 2pm, then showers likely.  High near 68. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 25 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Northwest wind 5 to 15 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 55. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37. West wind around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 26.

    Low: 26 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly after 4am. Mostly cloudy, with a low around 49. East wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers and thunderstorms before 2pm, then showers likely. High near 68. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Northwest wind 5 to 15 mph.
Monday
Sunny, with a high near 55. West wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 37. West wind around 5 mph.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Clear, with a low around 26.
Wednesday
Sunny, with a high near 51.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 68.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Downingtown PA
 40.02°N 75.7°W (Elev. 338 ft)
9:58 pm EDT Apr 4, 2026
12am EDT Apr 5, 2026-6pm EDT Apr 11, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database