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

28°F

-2°C

Humidity 66%
Wind Speed W 7 mph
Barometer 30.18 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 4 Jan 8:55 pm EST
Extended Forecast for

3 Miles W Coatesville PA

  • Tonight

    Tonight: Partly cloudy, with a low around 21. West wind around 5 mph.

    Low: 21 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 36. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 36 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. Southeast wind around 5 mph becoming calm.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 45. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 45 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 36. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 30%.

    Low: 36 °F

    Chance Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 21. West wind around 5 mph.
Monday
Mostly cloudy, with a high near 36. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 28. Southeast wind around 5 mph becoming calm.
Tuesday
Mostly cloudy, with a high near 45. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 36. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Friday
Rain likely. Mostly cloudy, with a high near 53. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Coatesville PA
 39.99°N 75.88°W (Elev. 600 ft)
Last Update:
4:11 pm EST Jan 4, 2026
Forecast Valid:
9pm EST Jan 4, 2026-6pm EST Jan 11, 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