Hazardous Weather Conditions
Current conditions at
Hagerstown, Washington County Regional Airport (KHGR)
Lat: 39.71°NLon: 77.73°WElev: 702ft.
Overcast
80°F
27°C
| Humidity | 71% |
| Wind Speed | S 9 mph |
| Barometer | 29.93 in (1013.8 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 20 Aug 1:53 pm EDT |
Extended Forecast for
6 Miles S Mercersburg PA
Flood Watch August 20, 02:10pm until August 20, 04:00pm
NOW until 4:00pm Thu

Flood Watch
This Afternoon

High: 79 °F
Rain
Tonight
Low: 62 °F
Chance
T-storms then
Mostly CloudyFriday

High: 81 °F
Mostly Sunny
Friday Night
Low: 65 °F
Chance
Showers then
Showers
LikelySaturday

High: 83 °F
Showers
LikelySaturday Night
Low: 64 °F
Showers
Likely then
Chance
ShowersSunday

High: 82 °F
Mostly Sunny
Sunday Night

Low: 60 °F
Mostly Clear
Detailed Forecast
This Afternoon
Rain and possibly a thunderstorm. High near 79. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain and thunderstorms before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 62. North wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 81. North wind around 5 mph becoming light and variable in the afternoon.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%. 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.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 84.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
6 Miles S Mercersburg PA
39.76°N 77.89°W (Elev. 587 ft)
39.76°N 77.89°W (Elev. 587 ft)
2:06 pm EDT Aug 20, 2026
2pm EDT Aug 20, 2026-6pm EDT Aug 26, 2026



