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.

Mostly Cloudy and Windy

30°F

-1°C

Humidity 64%
Wind Speed W 26 G 33 mph
Barometer 29.75 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 17 Mar 6:15 am EDT
Extended Forecast for

3 Miles NNE Chatham PA

  • Today

    Today: Partly sunny, with a high near 37. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.

    High: 37 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 22. Northwest wind 10 to 15 mph.

    Low: 22 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. West wind around 5 mph becoming south in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. South wind around 5 mph.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. South wind 5 to 10 mph.

    High: 48 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain after 2am. Partly cloudy, with a low around 32. Chance of precipitation is 20%.

    Low: 32 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A chance of rain before 8am. Partly sunny, with a high near 55. Chance of precipitation is 30%.

    High: 55 °F

    Chance Rain
    then Partly
    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 37. Breezy, with a west wind around 20 mph, with gusts as high as 35 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 22. Northwest wind 10 to 15 mph.
Wednesday
Mostly sunny, with a high near 38. West wind around 5 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 26. South wind around 5 mph.
Thursday
Partly sunny, with a high near 48. South wind 5 to 10 mph.
Thursday Night
A slight chance of rain after 2am. Partly cloudy, with a low around 32. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 54.
Friday Night
A chance of rain after 2am. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
A chance of rain before 8am. Partly sunny, with a high near 55. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Chatham PA
 39.87°N 75.81°W (Elev. 427 ft)
Last Update:
4:11 am EDT Mar 17, 2026
Forecast Valid:
6am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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