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

48°F

9°C

Humidity 49%
Wind Speed SW 6 mph
Barometer 29.96 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 4 May 4:15 am EDT
Extended Forecast for

Atglen PA

  • Today

    Today: Sunny, with a high near 70. Southwest wind 5 to 15 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. South wind around 10 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 59. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Rain. High near 68. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.

    High: 59 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers before 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Southwest wind 5 to 15 mph.
Tonight
Partly cloudy, with a low around 55. South wind around 10 mph.
Tuesday
Sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 59. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Wednesday
Rain. High near 68. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain likely, mainly before 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 2am. Mostly cloudy, with a low around 41. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 44.
Saturday
A chance of showers. Mostly sunny, with a high near 64. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Atglen PA
 39.94°N 75.97°W (Elev. 577 ft)
Last Update:
4:08 am EDT May 4, 2026
Forecast Valid:
4am EDT May 4, 2026-6pm EDT May 10, 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