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.

54°F

12°C

Humidity 100%
Wind Speed N 8 mph
Barometer 29.77 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 Oct 5:55 am EDT
Extended Forecast for

Coatesville PA

  • Overnight

    Overnight: A chance of showers and thunderstorms. Cloudy, with a low around 57. North wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Chance
    Showers

  • Columbus Day

    Columbus Day: A chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 72. North 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.

    High: 72 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Southwest wind around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.

    Low: 55 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Cloudy, with a low around 57. North wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Columbus Day
A chance of showers and thunderstorms, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 72. North 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.
Monday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 77. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Friday
A chance of showers. Mostly cloudy, with a high near 72. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 52. Breezy.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Sunny, with a high near 55.
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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:
4:09 am EDT Oct 12, 2026
Forecast Valid:
5am EDT Oct 12, 2026-6pm EDT Oct 18, 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