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.

43°F

6°C

Humidity 79%
Wind Speed NW 7 mph
Barometer 30.02 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 10 Nov 12:35 am EST
Extended Forecast for

Westtown PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 38. West wind around 5 mph.

    Low: 38 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 64. West wind 5 to 15 mph.

    High: 64 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40. West wind around 5 mph.

    Low: 40 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 63. Calm wind becoming west around 5 mph.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. Calm wind becoming east around 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 61 °F

    Chance Rain
    then Rain
    Likely

  • 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 45. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 38. West wind around 5 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 64. West wind 5 to 15 mph.
Tuesday Night
Mostly clear, with a low around 40. West wind around 5 mph.
Veterans Day
Mostly sunny, with a high near 63. Calm wind becoming west around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 41. Calm wind becoming east around 5 mph.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 70%. 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 45. Chance of precipitation is 60%.
Friday Night
A chance of rain before 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Westtown PA
 39.94°N 75.57°W (Elev. 299 ft)
Last Update:
4:07 pm EST Nov 9, 2026
Forecast Valid:
12am EST Nov 10, 2026-6pm EST Nov 16, 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