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.

Fair

30°F

-1°C

Humidity 40%
Wind Speed SW 8 mph
Barometer 29.97 in
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 16 Jan 2:55 pm EST
Extended Forecast for

Westtown PA

  • Tonight

    Tonight: A chance of snow, mainly after 1am. Increasing clouds, with a low around 28. South wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 28 °F

    Partly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely, possibly mixing with rain after 1pm, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 40. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Snow Likely
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of snow after 1am. Increasing clouds, with a low around 29. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 29 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: A chance of snow. Cloudy, with a high near 34. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19. West wind around 5 mph.

    Low: 19 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 33.

    High: 33 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 20.

    High: 20 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10.

    Low: 10 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of snow, mainly after 1am. Increasing clouds, with a low around 28. South wind around 5 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow likely, possibly mixing with rain after 1pm, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 40. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Saturday Night
A slight chance of snow after 1am. Increasing clouds, with a low around 29. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Sunday
A chance of snow. Cloudy, with a high near 34. Northwest wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday Night
Partly cloudy, with a low around 19. West wind around 5 mph.
M.L.King Day
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Sunny, with a high near 20.
Tuesday Night
Mostly clear, with a low around 10.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 20.
Friday
A chance of snow. Partly sunny, with a high near 32. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westtown PA
 39.94°N 75.57°W (Elev. 299 ft)
Last Update:
2:01 pm EST Jan 16, 2026
Forecast Valid:
3pm EST Jan 16, 2026-6pm EST Jan 23, 2026
 
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