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.

Overcast

67°F

19°C

Humidity 78%
Wind Speed NW 12 mph
Barometer 29.81 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 17 Apr 3:15 am EDT
Extended Forecast for

3 Miles NNE Chatham PA

  • Overnight

    Overnight: A slight chance of showers. Mostly cloudy, with a low around 63. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers

  • Friday

    Friday: Isolated showers after 1pm. Mostly sunny, with a high near 77. Northwest wind around 10 mph. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Sunny
    then Isolated
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. North wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 52. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly after 8am. High near 55. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%.

    Low: 36 °F

    Showers
    Likely then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of showers. Mostly cloudy, with a low around 63. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
Isolated showers after 1pm. Mostly sunny, with a high near 77. Northwest wind around 10 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 56. North wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 74. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 52. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers, mainly after 8am. High near 55. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers likely before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 60%.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 30.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 70.
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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:
2:58 am EDT Apr 17, 2026
Forecast Valid:
3am EDT Apr 17, 2026-6pm EDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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