Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fair

67°F

19°C

Humidity 55%
Wind Speed NW 10 mph
Barometer 29.83 in
Dewpoint 50°F (10°C)
Visibility 9.00 mi
Last update 19 Jun 11:35 pm EDT
Extended Forecast for

Exton PA

  • Tonight

    Tonight: Clear, with a low around 60. West wind around 10 mph.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 80. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light  after midnight.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. West wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am.  Mostly cloudy, with a low around 63. Calm wind.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am.  High near 82. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 82 °F

    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 2am.  Mostly cloudy, with a low around 62. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 60. West wind around 10 mph.
Saturday
Sunny, with a high near 80. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 59. West wind 5 to 10 mph becoming light after midnight.
Sunday
Sunny, with a high near 83. West wind 5 to 10 mph.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers likely and possibly a thunderstorm before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 82.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Exton PA
 40.03°N 75.64°W (Elev. 299 ft)
9:49 pm EDT Jun 19, 2026
11pm EDT Jun 19, 2026-6pm EDT Jun 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database