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.

Rain Fog/Mist

59°F

15°C

Humidity 100%
Wind Speed E 13 mph
Barometer 30.09 in
Dewpoint 59°F (15°C)
Visibility 2.00 mi
Last update 11 Oct 12:35 pm EDT
Extended Forecast for

Coatesville PA

  • This Afternoon

    This Afternoon: Rain, with thunderstorms also possible after 5pm. High near 64. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 64 °F

    Rain

  • Tonight

    Tonight: Rain and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 58. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Showers

  • Columbus Day

    Columbus Day: A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 71. 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: 71 °F

    Chance
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain, with thunderstorms also possible after 5pm. High near 64. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Rain and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 58. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Columbus Day
A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a high near 71. 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
Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 75. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
A chance of showers after 2am. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 57.
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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 11, 2026
Forecast Valid:
12pm EDT Oct 11, 2026-6pm EDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation