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

37°F

3°C

Humidity 92%
Wind Speed W 3 mph
Barometer 29.98 in
Dewpoint 35°F (2°C)
Visibility 7.00 mi
Last update 23 Dec 11:15 pm EST
Extended Forecast for

3 Miles W Coatesville PA

  • Tonight

    Tonight: Partly cloudy, with a low around 34. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 42. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 42 °F

    Sunny and
    Breezy then
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 29. Calm wind becoming south around 5 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: A slight chance of rain before 1pm. Mostly cloudy, with a high near 42. South wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 24. North wind 5 to 10 mph.

    Low: 24 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of snow before 1pm, then snow and freezing rain likely, possibly mixed with sleet. Mostly cloudy, with a high near 31. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 31 °F

    Slight Chance
    Snow then
    Wintry Mix
    Likely

  • Friday Night

    Friday Night: Snow and freezing rain, becoming all freezing rain after 1am. Low around 27. Chance of precipitation is 100%.

    Low: 27 °F

    Wintry Mix

  • Saturday

    Saturday: A chance of snow before 1pm. Cloudy, with a high near 36. Chance of precipitation is 30%.

    High: 36 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A chance of snow after 1am. Cloudy, with a low around 32. Chance of precipitation is 40%.

    Low: 32 °F

    Cloudy then
    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 42. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 35 mph.
Wednesday Night
Increasing clouds, with a low around 29. Calm wind becoming south around 5 mph.
Christmas Day
A slight chance of rain before 1pm. Mostly cloudy, with a high near 42. South wind 5 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 24. North wind 5 to 10 mph.
Friday
A slight chance of snow before 1pm, then snow and freezing rain likely, possibly mixed with sleet. Mostly cloudy, with a high near 31. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Snow and freezing rain, becoming all freezing rain after 1am. Low around 27. Chance of precipitation is 100%.
Saturday
A chance of snow before 1pm. Cloudy, with a high near 36. Chance of precipitation is 30%.
Saturday Night
A chance of snow after 1am. Cloudy, with a low around 32. Chance of precipitation is 40%.
Sunday
Rain likely. Cloudy, with a high near 43. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 25. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 32. Breezy.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 28.
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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:
4:12 pm EST Dec 23, 2025
Forecast Valid:
11pm EST Dec 23, 2025-6pm EST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation