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

54°F

12°C

Humidity 100%
Wind Speed W 7 mph
Barometer 30.05 in
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Wind Chill52°F (11°C)
Last update 10 Mar 8:55 am EDT
Extended Forecast for

3 Miles NNE Chatham PA

  • Today

    Today: Sunny, with a high near 74. Southwest wind 5 to 10 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. South wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 73. South wind 5 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers
    Likely

  • Thursday

    Thursday: Rain showers likely before 5pm, then a slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 52. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 52 °F

    Breezy.
    Showers
    Likely then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 47. Breezy.

    High: 47 °F

    Mostly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 52. South wind around 5 mph.
Wednesday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 73. South wind 5 to 15 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 51. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Rain showers likely before 5pm, then a slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 52. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 29.
Friday
Partly sunny, with a high near 47. Breezy.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 58.
Sunday Night
Rain. Low around 43. Chance of precipitation is 80%.
Monday
Rain. High near 53. Breezy. Chance of precipitation is 80%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Chatham PA
 39.88°N 75.84°W (Elev. 499 ft)
Last Update:
4:08 am EDT Mar 10, 2026
Forecast Valid:
9am EDT Mar 10, 2026-6pm EDT Mar 16, 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