


Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Overcast
68°F
20°C
Humidity | 81% |
Wind Speed | Calm |
Barometer | 30.18 in (1022.5 mb) |
Dewpoint | 62°F (17°C) |
Visibility | 10.00 mi |
Last update | 19 Aug 1:53 am EDT |
Extended Forecast for
Mercersburg PA
Overnight
Low: 63 °F
Mostly Cloudy
Tuesday
High: 75 °F
Mostly Cloudy
Tuesday Night
Low: 65 °F
Chance
ShowersWednesday
High: 82 °F
Chance
Showers then
Showers
LikelyWednesday Night
Low: 64 °F
Showers
Likely then
Chance
ShowersThursday
High: 83 °F
Partly Sunny
then Slight
Chance
ShowersThursday Night
Low: 61 °F
Mostly Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 64 °F
Mostly Clear
Detailed Forecast
Overnight
Mostly cloudy, with a low around 63. Calm wind.
Tuesday
Mostly cloudy, with a high near 75. Northeast wind 3 to 6 mph.
Tuesday Night
A chance of showers, mainly before 3am. Mostly cloudy, with a low around 65. East wind 3 to 6 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 64.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Monday
Sunny, with a high near 81.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Mercersburg PA
39.82°N 77.88°W (Elev. 551 ft)
39.82°N 77.88°W (Elev. 551 ft)
1:17 am EDT Aug 19, 2025
2am EDT Aug 19, 2025-6pm EDT Aug 25, 2025