Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Fair
67°F
19°C
| Humidity | 71% |
| Wind Speed | N 8 mph |
| Barometer | 30.14 in (1021.3 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 21 Aug 9:53 am EDT |
Extended Forecast for
Mercersburg PA
Today
High: 82 °F
Dense Fog
then SunnyTonight
Low: 61 °F
Partly Cloudy
then Slight
Chance
T-storms and
Patchy FogSaturday
High: 80 °F
Showers
Likely and
Patchy FogSaturday Night
Low: 63 °F
Chance
Showers and
Patchy FogSunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 58 °F
Mostly Clear
Monday
High: 81 °F
Sunny
Monday Night
Low: 57 °F
Mostly Clear
Tuesday
High: 80 °F
Sunny
Detailed Forecast
Today
Widespread dense fog before 11am. Otherwise, sunny, with a high near 82. Light northeast wind.
Tonight
A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 61. Calm wind. Chance of precipitation is 20%.
Saturday
Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 80. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 82. Calm wind becoming west 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercersburg PA
39.82°N 77.88°W (Elev. 551 ft)
39.82°N 77.88°W (Elev. 551 ft)
8:06 am EDT Aug 21, 2026
10am EDT Aug 21, 2026-6pm EDT Aug 27, 2026
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