National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fog/Mist

50°F

10°C

Humidity 100%
Wind Speed W 7 mph
Barometer 30.07 in
Dewpoint 50°F (10°C)
Visibility 5.00 mi
Wind Chill47°F (8°C)
Last update 9 Jan 7:55 pm EST
Extended Forecast for

3 Miles S Exton PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. Southwest wind 5 to 10 mph becoming north after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain, mainly after 10am. High near 45. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain Likely
    then Rain

  • Saturday Night

    Saturday Night: Rain, mainly between 7pm and 1am. Low around 37. Northeast wind 5 to 10 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Sunday

    Sunday: A slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of snow showers after 4pm. Mostly sunny, with a high near 42. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 42 °F

    Partly Sunny
    then Isolated
    Rain/Snow

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 27. West wind around 15 mph, with gusts as high as 30 mph.

    Low: 27 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 41. Southwest wind 5 to 10 mph becoming north after midnight.
Saturday
Rain, mainly after 10am. High near 45. North wind around 5 mph becoming east in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain, mainly between 7pm and 1am. Low around 37. Northeast wind 5 to 10 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain and snow showers between 1pm and 4pm, then a slight chance of snow showers after 4pm. Mostly sunny, with a high near 42. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 27. West wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
A chance of rain. Partly sunny, with a high near 36. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Exton PA
 39.99°N 75.62°W (Elev. 400 ft)
Last Update:
7:53 pm EST Jan 9, 2026
Forecast Valid:
8pm EST Jan 9, 2026-6pm EST Jan 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