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

30°F

-1°C

Humidity 39%
Wind Speed NE 8 mph
Barometer 30.43 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 1 Mar 10:55 pm EST
Extended Forecast for

Atglen 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 south 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 26. Southeast wind around 5 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: Rain, snow, and freezing rain, becoming all rain after 10am. High near 43. Southeast wind 5 to 10 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 38. Southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 55. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 55 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Cloudy, with a low around 46. Chance of precipitation is 50%.

    Low: 46 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain. Cloudy, with a high near 66. Chance of precipitation is 40%.

    High: 66 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain. Cloudy, with a low around 49. Chance of precipitation is 50%.

    Low: 49 °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 south in the afternoon.
Monday Night
A chance of snow after 1am, mixing with freezing rain after 4am. Increasing clouds, with a low around 26. Southeast wind around 5 mph. Chance of precipitation is 50%. 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 5 to 10 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 38. Southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A chance of rain. Cloudy, with a high near 55. 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 46. Chance of precipitation is 50%.
Thursday
A chance of rain. Cloudy, with a high near 66. Chance of precipitation is 40%.
Thursday Night
A chance of rain. Cloudy, with a low around 49. 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 46.
Saturday
A chance of rain. Mostly cloudy, with a high near 66. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Sunday
A chance of rain. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Atglen PA
 39.96°N 75.97°W (Elev. 499 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