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

60°F

16°C

Humidity 93%
Wind Speed W 7 mph
Barometer 29.85 in
Dewpoint 58°F (14°C)
Visibility 9.00 mi
Last update 17 Apr 6:15 am EDT
Extended Forecast for

Coatesville PA

  • Today

    Today: Mostly sunny, with a high near 77. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 56. North wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 75. East wind 5 to 10 mph.

    High: 75 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Increasing clouds, with a low around 52. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 54. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 77. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 56. North wind around 5 mph becoming calm after midnight.
Saturday
Partly sunny, with a high near 75. East wind 5 to 10 mph.
Saturday Night
A chance of showers, mainly after 2am. Increasing clouds, with a low around 52. Southeast wind 5 to 10 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly after 8am. High near 54. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 70.
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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:
6:04 am EDT Apr 17, 2026
Forecast Valid:
6am EDT Apr 17, 2026-6pm EDT Apr 23, 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