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.

Overcast

50°F

10°C

Humidity 72%
Wind Speed Vrbl 5 mph
Barometer 30.00 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 26 Mar 5:15 am EDT
Extended Forecast for

Coatesville PA

  • Today

    Today: Partly sunny, with a high near 72. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers after 2am. Low around 49. West wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, mainly before noon. Temperature falling to around 47 by 5pm. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F⇓

    Showers then
    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain before 2am. Cloudy during the early evening, then gradual clearing, with a low around 28. North wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Sunny, with a high near 42. Northwest wind around 15 mph, with gusts as high as 30 mph.

    High: 42 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 72. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Showers and thunderstorms likely, then showers after 2am. Low around 49. West wind around 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers, mainly before noon. Temperature falling to around 47 by 5pm. North wind 10 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A slight chance of rain before 2am. Cloudy during the early evening, then gradual clearing, with a low around 28. North wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 42. Northwest wind around 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 59.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 47. Chance of precipitation is 40%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 63. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 65. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Coatesville PA
 39.99°N 75.85°W (Elev. 597 ft)
Last Update:
4:10 am EDT Mar 26, 2026
Forecast Valid:
5am EDT Mar 26, 2026-6pm EDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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