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

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

29°F

-2°C

Humidity 42%
Wind Speed NE 5 mph
Barometer 30.45 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 1 Mar 11:35 pm EST
Extended Forecast for

2 Miles ESE Downingtown PA

  • Tonight

    Tonight: Mostly clear, with a low around 20. Northeast wind around 5 mph.

    Low: 20 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, with a high near 34. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 34 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am, mixing with freezing rain after 4am. Increasing clouds, with a low around 25. Southeast wind around 5 mph becoming calm. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: Rain, snow, and freezing rain, becoming all rain after 10am. High near 43. Southeast wind around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Wintry Mix
    then Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 37. Southwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 56. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Cloudy, with a low around 45. Chance of precipitation is 50%.

    Low: 45 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Cloudy, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 48. Chance of precipitation is 50%.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 20. Northeast wind around 5 mph.
Monday
Partly sunny, with a high near 34. Northeast wind around 5 mph becoming southeast in the afternoon.
Monday Night
A chance of snow after 1am, mixing with freezing rain after 4am. Increasing clouds, with a low around 25. Southeast wind around 5 mph becoming calm. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Tuesday
Rain, snow, and freezing rain, becoming all rain after 10am. High near 43. Southeast wind around 5 mph. Chance of precipitation is 90%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain. Low around 37. Southwest wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain. Cloudy, with a high near 56. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain. Cloudy, with a low around 45. Chance of precipitation is 50%.
Thursday
A chance of rain. Cloudy, with a high near 67. Chance of precipitation is 30%.
Thursday Night
A chance of rain. Cloudy, with a low around 48. Chance of precipitation is 50%.
Friday
A chance of rain before 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
A chance of rain. Mostly cloudy, with a high near 67. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Sunday
A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Downingtown PA
 39.99°N 75.67°W (Elev. 348 ft)
Last Update:
4:10 pm EST Mar 1, 2026
Forecast Valid:
11pm EST Mar 1, 2026-6pm EDT Mar 8, 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