Dangerous Heat and Humidity Building from the Plains to the East Coast

Strengthening high pressure will bring much above normal high and low temperatures. Widespread highs in the 90s to 100 combined with dewpoints surging into the mid and upper 70s will create heat indices as high as 110 through this weekend. In addition, overnight temperatures in the 70s to low 80s will reduce the ability of the body to recover from daytime heating. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Mostly Cloudy

80°F

27°C

Humidity 90%
Wind Speed S 7 mph
Barometer 29.90 in (1012.7 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Jul 5:53 pm EDT
Extended Forecast for

Chambersburg PA

Excessive Heat Watch July 19, 12:00pm until July 21, 10:00pm
Click here for hazard details and duration
Excessive Heat Watch
  • Tonight

    Tonight: Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Some of the storms could produce gusty winds and heavy rain.  Low around 71. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain

    Low: 71 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 8am.  Mostly cloudy, with a high near 90. Light west wind.  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: 90 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 72. Calm wind.

    Partly Cloudy

    Low: 72 °F

  • Friday

    Friday: Mostly sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming west 5 to 7 mph in the afternoon.

    Hot

    High: 95 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 77. West wind 3 to 5 mph.

    Mostly Clear

    Low: 77 °F

  • Saturday

    Saturday: Sunny and hot, with a high near 98.

    Hot

    High: 98 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 77.

    Partly Cloudy

    Low: 77 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms.  Mostly sunny and hot, with a high near 95. Chance of precipitation is 40%.

    Chance
    T-storms

    High: 95 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. Chance of precipitation is 30%.

    Chance
    T-storms

    Low: 73 °F

Detailed Forecast

Tonight
Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Some of the storms could produce gusty winds and heavy rain. Low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms, mainly after 8am. Mostly cloudy, with a high near 90. Light west wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 72. Calm wind.
Friday
Mostly sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming west 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 77. West wind 3 to 5 mph.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Partly cloudy, with a low around 77.
Sunday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Chambersburg PA
 39.93°N 77.66°W (Elev. 617 ft)
4:27 pm EDT Jul 17, 2019
6pm EDT Jul 17, 2019-6pm EDT Jul 24, 2019
 
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Additional Resources

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Hourly Weather Forecast

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