National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

75°F

24°C

Humidity 79%
Wind Speed SW 7 mph
Barometer 30.03 in (1017.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 15 Jul 5:53 am 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

  • Today

    Today: Sunny and hot, with a high near 100. Heat index values as high as 103. Calm wind becoming west 5 to 8 mph in the morning.

    High: 100 °F

    Hot

  • Tonight

    Tonight: Patchy smoke after 1am. Partly cloudy, with a low around 74. West wind around 6 mph becoming calm in the evening.

    Low: 74 °F

    Partly Cloudy
    then Patchy
    Smoke

  • Thursday

    Thursday: Areas of smoke. Mostly sunny and hot, with a high near 98. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 98 °F

    Areas Smoke

  • Thursday Night

    Thursday Night: Widespread smoke, mainly between 8pm and 3am. Partly cloudy, with a low around 69. Northwest wind around 6 mph becoming calm after midnight.

    Low: 69 °F

    Smoke

  • Friday

    Friday: Areas of smoke. Mostly sunny and hot, with a high near 94. Calm wind.

    High: 94 °F

    Areas Smoke

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 70. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. Patchy smoke before 9am. High near 88. Chance of precipitation is 80%.

    High: 88 °F

    Showers
    Likely then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm, mainly before 2am. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 100. Heat index values as high as 103. Calm wind becoming west 5 to 8 mph in the morning.
Tonight
Patchy smoke after 1am. Partly cloudy, with a low around 74. West wind around 6 mph becoming calm in the evening.
Thursday
Areas of smoke. Mostly sunny and hot, with a high near 98. Calm wind becoming west 5 to 9 mph in the afternoon.
Thursday Night
Widespread smoke, mainly between 8pm and 3am. Partly cloudy, with a low around 69. Northwest wind around 6 mph becoming calm after midnight.
Friday
Areas of smoke. Mostly sunny and hot, with a high near 94. Calm wind.
Friday Night
A chance of showers and thunderstorms. Areas of smoke. Mostly cloudy, with a low around 70. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. Patchy smoke before 9am. High near 88. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm, mainly before 2am. Low around 69. Chance of precipitation is 80%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 90.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chambersburg PA
 39.93°N 77.66°W (Elev. 617 ft)
Last Update:
6:11 am EDT Jul 15, 2026
Forecast Valid:
7am EDT Jul 15, 2026-6pm EDT Jul 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation