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

56°F

13°C

Humidity 100%
Wind Speed NW 3 mph
Barometer 30.14 in
Dewpoint 56°F (13°C)
Visibility 9.00 mi
Last update 4 Apr 6:15 am EDT
Extended Forecast for

South Coatesville PA

  • Today

    Today: A chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 79. West wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then a slight chance of showers after 3am. Mostly cloudy, with a low around 54. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly between 8am and 2pm. High near 65. South wind around 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Northwest wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 55. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 38. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 26.

    Low: 26 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 79. West wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before midnight, then a slight chance of showers after 3am. Mostly cloudy, with a low around 54. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, mainly between 8am and 2pm. High near 65. South wind around 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of showers before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 38. Northwest wind 10 to 15 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly sunny, with a high near 55. West wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 38. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Clear, with a low around 26.
Wednesday
Sunny, with a high near 52.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 62.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 69.
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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:
4:10 am EDT Apr 4, 2026
Forecast Valid:
6am EDT Apr 4, 2026-6pm EDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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