Hazardous Weather Conditions
Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Fair
47°F
8°C
| Humidity | 46% |
| Wind Speed | N 5 mph |
| Barometer | 30.38 in (1030.2 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 45°F (7°C) |
| Last update | 17 Oct 7:53 pm EDT |
Extended Forecast for
Mercersburg PA
Freeze Warning October 18, 01:00am until October 18, 09:00am
Tonight
Low: 34 °F
Clear then
Areas FrostSunday
High: 61 °F
Areas Frost
then SunnySunday Night
Low: 37 °F
Clear
Monday
High: 66 °F
Areas Frost
then SunnyMonday Night
Low: 40 °F
Mostly Clear
Tuesday
High: 69 °F
Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 65 °F
Sunny
Wednesday Night
Low: 41 °F
Mostly Clear
Detailed Forecast
Tonight
Areas of frost after 5am. Otherwise, clear, with a low around 34. North wind 3 to 7 mph.
Sunday
Areas of frost before 9am. Otherwise, sunny, with a high near 61. Calm wind.
Sunday Night
Clear, with a low around 37. Calm wind.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 66. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 40. Calm wind becoming north around 5 mph after midnight.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 63.
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 17, 2026
8pm EDT Oct 17, 2026-6pm EDT Oct 24, 2026
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