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.

Light Rain Fog/Mist

65°F

18°C

Humidity 96%
Wind Speed Vrbl 6 mph
Barometer 29.99 in
Dewpoint 64°F (18°C)
Visibility 4.00 mi
Last update 14 Apr 10:55 pm EDT
Extended Forecast for

Coatesville PA

  • Tonight

    Tonight: Partly cloudy, with a low around 64. West wind around 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. West wind 5 to 15 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65. Southwest wind around 5 mph.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. West wind around 5 mph.
Wednesday
Sunny, with a high near 89. West wind 5 to 15 mph.
Wednesday Night
Mostly cloudy, with a low around 65. Southwest wind around 5 mph.
Thursday
Partly sunny, with a high near 87. Southwest wind 5 to 10 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Mostly clear, with a low around 57.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
A chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 30%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 39.99°N 75.82°W (Elev. 400 ft)
Last Update:
6:17 pm EDT Apr 14, 2026
Forecast Valid:
11pm EDT Apr 14, 2026-6pm EDT Apr 21, 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