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.

A Few Clouds

29°F

-2°C

Humidity 53%
Wind Speed W 8 mph
Barometer 29.91 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 24 Feb 3:55 pm EST
Extended Forecast for

South Coatesville PA

  • Tonight

    Tonight: Snow, mainly after 1am. Low around 21. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 21 °F

    Partly Cloudy
    then Snow

  • Wednesday

    Wednesday: A chance of snow, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 47. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 47 °F

    Chance Snow
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Southwest wind around 5 mph.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 41. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 28. Northeast wind around 5 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Chance Snow

  • Friday

    Friday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow, mainly after 1am. Low around 21. Light and variable wind becoming south 5 to 10 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
A chance of snow, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 47. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 29. Southwest wind around 5 mph.
Thursday
A chance of snow, mainly after 1pm. Mostly cloudy, with a high near 41. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 28. Northeast wind around 5 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly cloudy, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 40%.
Monday Night
A chance of snow. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Coatesville PA
 39.96°N 75.82°W (Elev. 420 ft)
Last Update:
4:14 pm EST Feb 24, 2026
Forecast Valid:
4pm EST Feb 24, 2026-6pm EST Mar 3, 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