Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Light Rain Fog/Mist
58°F
14°C
| Humidity | 97% |
| Wind Speed | S 10 mph |
| Barometer | 30.04 in (1018.2 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 5.00 mi |
| Last update | 16 Oct 12:53 am EDT |
Extended Forecast for
Mercersburg PA
Overnight
Low: 59 °F
Showers
LikelyFriday
High: 84 °F
Partly Sunny
then Showers
LikelyFriday Night
Low: 45 °F
Chance
Showers then
Mostly CloudySaturday
High: 54 °F
Decreasing
CloudsSaturday Night
Low: 35 °F
Clear then
Areas FrostSunday
High: 59 °F
Areas Frost
then SunnySunday Night
Low: 37 °F
Mostly Clear
Monday
High: 63 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear
Detailed Forecast
Overnight
Showers likely, mainly before 3am. Mostly cloudy, with a low around 59. South wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 84. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers before 7pm. Increasing clouds, with a low around 45. West wind 11 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 54. North wind 13 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Areas of frost after 4am. Otherwise, clear, with a low around 35. North wind around 5 mph becoming calm in the evening.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 37.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 65.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mercersburg PA
39.82°N 77.9°W (Elev. 600 ft)
39.82°N 77.9°W (Elev. 600 ft)
8:06 pm EDT Oct 15, 2026
1am EDT Oct 16, 2026-6pm EDT Oct 22, 2026
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