Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

Chester County Airport (KMQS)

Lat: 39.98°NLon: 75.87°WElev: 659ft.

Fog/Mist

69°F

21°C

Humidity 100%
Wind Speed Vrbl 3 mph
Barometer 30.13 in
Dewpoint 69°F (21°C)
Visibility 4.00 mi
Last update 16 Aug 8:15 am EDT
Extended Forecast for

Thorndale PA

  • Today

    Today: Showers likely, then showers and possibly a thunderstorm after 2pm.  Patchy fog before 10am. High near 77. South wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Chance
    Showers and
    Patchy Fog
    then Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am.  Patchy fog after 1am. Low around 68. South wind 5 to 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 3pm.  Cloudy through mid morning, then becoming mostly sunny, with a high near 86. Northwest wind 5 to 10 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 7pm.  Partly cloudy, with a low around 66. North wind around 5 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. Northwest wind around 5 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers.  Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely, then showers and possibly a thunderstorm after 2pm. Patchy fog before 10am. High near 77. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Patchy fog after 1am. Low around 68. South wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers and thunderstorms, mainly after 3pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 86. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 66. North wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 84. Northwest wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 61.
Friday
A chance of showers. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Thorndale PA
 40°N 75.76°W (Elev. 390 ft)
4:09 am EDT Aug 16, 2026
8am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database