National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fog/Mist

67°F

19°C

Humidity 91%
Wind Speed NE 7 mph
Barometer 30.08 in (1019.2 mb)
Dewpoint 64°F (18°C)
Visibility 4.00 mi
Last update 14 Jun 11:53 pm EDT
Extended Forecast for

4 Miles S Mercersburg PA

  • Overnight

    Overnight: Scattered showers. Patchy fog. Otherwise, cloudy, with a low around 63. Light northeast wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 63 °F

    Scattered
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Scattered showers, with thunderstorms also possible after 11am. Patchy fog before 11am. Otherwise, cloudy, with a high near 68. East wind 3 to 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Scattered
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Showers likely, mainly before 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 62. Light east wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: A chance of showers. Patchy fog before 9am. Otherwise, cloudy, with a high near 71. East wind 3 to 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Cloudy, with a low around 64. Light southeast wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 40%.

    High: 90 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Scattered showers. Patchy fog. Otherwise, cloudy, with a low around 63. Light northeast wind. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Scattered showers, with thunderstorms also possible after 11am. Patchy fog before 11am. Otherwise, cloudy, with a high near 68. East wind 3 to 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely, mainly before 2am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 62. Light east wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers. Patchy fog before 9am. Otherwise, cloudy, with a high near 71. East wind 3 to 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers and thunderstorms. Cloudy, with a low around 64. Light southeast wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 40%.
Wednesday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Juneteenth
Showers likely, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Thursday Night
Showers likely. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Mercersburg PA
 39.76°N 77.89°W (Elev. 587 ft)
Last Update:
10:46 pm EDT Jun 14, 2025
Forecast Valid:
12am EDT Jun 15, 2025-6pm EDT Jun 21, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation