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.

53°F

12°C

Humidity 55%
Wind Speed NW 9 mph
Barometer 29.94 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 9 Nov 4:35 pm EST
Extended Forecast for

3 Miles NNW Coatesville PA

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Northwest wind 5 to 10 mph.

    Low: 38 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 63. West wind 5 to 15 mph.

    High: 63 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. West wind around 5 mph.

    Low: 39 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 62. Calm wind becoming west around 5 mph.

    High: 62 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42. Calm wind becoming east around 5 mph after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 59. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Rain. Low around 38. Chance of precipitation is 80%.

    Low: 38 °F

    Rain

  • Friday

    Friday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.

    High: 44 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain

Detailed Forecast

Tonight
Increasing clouds, with a low around 38. Northwest wind 5 to 10 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 63. West wind 5 to 15 mph.
Tuesday Night
Mostly clear, with a low around 39. West wind around 5 mph.
Veterans Day
Mostly sunny, with a high near 62. Calm wind becoming west around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 42. Calm wind becoming east around 5 mph after midnight.
Thursday
Rain, mainly after 1pm. High near 59. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain. Low around 38. Chance of precipitation is 80%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 45.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 53.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Coatesville PA
 40.03°N 75.84°W (Elev. 581 ft)
Last Update:
4:07 pm EST Nov 9, 2026
Forecast Valid:
4pm EST Nov 9, 2026-6pm EST Nov 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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