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Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

90°F

32°C

Humidity 48%
Wind Speed Vrbl 7 mph
Barometer 30.10 in (1019.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 14 Jul 3:53 pm EDT
Extended Forecast for

Chambersburg PA

Heat Advisory July 15, 11:00am until July 15, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 72. West wind around 6 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Widespread haze. Patchy smoke. Increasing clouds and hot, with a high near 98. Heat index values as high as 102. Calm wind becoming west 5 to 8 mph in the morning.

    High: 98 °F

    Haze

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 74. Northwest wind around 5 mph becoming calm in the evening.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: Widespread haze. Areas of smoke. Mostly sunny and hot, with a high near 98. Heat index values as high as 101. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 98 °F

    Haze

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. Northwest wind around 6 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 94.

    High: 94 °F

    Hot

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.

    High: 90 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 72. West wind around 6 mph becoming calm in the evening.
Wednesday
Widespread haze. Patchy smoke. Increasing clouds and hot, with a high near 98. Heat index values as high as 102. Calm wind becoming west 5 to 8 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 74. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Widespread haze. Areas of smoke. Mostly sunny and hot, with a high near 98. Heat index values as high as 101. Calm wind becoming west 5 to 9 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 70. Northwest wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny and hot, with a high near 94.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 90. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday
A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 30%.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 91.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 90. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chambersburg PA
 39.93°N 77.66°W (Elev. 617 ft)
Last Update:
2:21 pm EDT Jul 14, 2026
Forecast Valid:
4pm EDT Jul 14, 2026-6pm EDT Jul 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation