Hazardous Weather Conditions
Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Fair
76°F
24°C
| Humidity | 67% |
| Wind Speed | NW 7 mph |
| Barometer | 30.01 in (1016.2 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 4 Jul 4:53 am EDT |
Extended Forecast for
Chambersburg PA
Extreme Heat Warning July 4, 05:02am until July 4, 08:00pm
NOW until 8:00pm Sat
Extreme Heat Warning
Independence Day
High: 100 °F
Mostly Sunny
then Severe
ThunderstormsTonight

Low: 72 °F
Severe
ThunderstormsSunday
High: 91 °F
Slight Chance
Showers then
Heavy RainSunday Night

Low: 68 °F
Heavy Rain
and Patchy
FogMonday

High: 83 °F
Showers
Monday Night

Low: 66 °F
Showers
Tuesday
High: 82 °F
Chance
Showers then
Chance
T-stormsTuesday Night
Low: 66 °F
Chance
T-storms then
Chance
Showers
Detailed Forecast
Independence Day
A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 91. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Some of the storms could produce heavy rainfall. Patchy fog after 11pm. Low around 68. Light east wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 83. Light southeast wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Chambersburg PA
39.93°N 77.66°W (Elev. 617 ft)
39.93°N 77.66°W (Elev. 617 ft)
3:35 am EDT Jul 4, 2026
5am EDT Jul 4, 2026-6pm EDT Jul 10, 2026



