Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

Pottstown, Pottstown Limerick Airport (KPTW)

Lat: 40.24°NLon: 75.55°WElev: 288ft.

A Few Clouds

81°F

27°C

Humidity 62%
Wind Speed SW 5 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 23 Jul 8:54 pm EDT
Extended Forecast for

Downingtown PA

Excessive Heat Warning until July 25, 06:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 25, 06:00pm

    NOW until
    6:00pm Mon

    Excessive Heat Warning

  • Tonight

    Tonight: Mostly clear, with a low around 69. Northwest wind around 5 mph becoming light and variable.

    Mostly Clear

    Low: 69 °F

  • Sunday

    Sunday: Sunny, with a high near 92. Calm wind becoming west 5 to 7 mph in the afternoon.

    Sunny

    High: 92 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph after midnight.

    Partly Cloudy

    Low: 73 °F

  • Monday

    Monday: A chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming southwest 5 to 8 mph in the afternoon.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 96 °F

  • Monday
    Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. West wind 3 to 6 mph.  Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 75 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93.

    Mostly Sunny

    High: 93 °F

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 73.

    Mostly Clear

    Low: 73 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    Mostly Sunny

    High: 92 °F

Detailed Forecast

Tonight
Mostly clear, with a low around 69. Northwest wind around 5 mph becoming light and variable.
Sunday
Sunny, with a high near 92. Calm wind becoming west 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph after midnight.
Monday
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 96. Heat index values as high as 104. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 40%. 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. Mostly cloudy, with a low around 75. West wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 72.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 71.
Saturday
Mostly cloudy, with a high near 86.
Click Map For Forecast
Point Forecast:
Downingtown PA
 40.02°N 75.7°W (Elev. 338 ft)
7:03 pm EDT Jul 23, 2016
9pm EDT Jul 23, 2016-6pm EDT Jul 30, 2016
 
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Additional Resources

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