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.

Partly Cloudy

73°F

23°C

Humidity 94%
Wind Speed SW 3 mph
Barometer 29.89 in (1012.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 17 Aug 6:53 am EDT
Extended Forecast for

Greencastle PA

  • Today

    Today: A chance of showers and thunderstorms, mainly between 3pm and 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Light and variable wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Patchy Fog
    then Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light north wind.

    Low: 67 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Northwest wind around 6 mph.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63. Light north wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly between 3pm and 5pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Light and variable wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 67. Light north wind.
Tuesday
Mostly sunny, with a high near 86. Northwest wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 63. Light north wind.
Wednesday
Sunny, with a high near 88. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Friday Night
A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Greencastle PA
 39.78°N 77.74°W (Elev. 548 ft)
Last Update:
6:11 am EDT Aug 17, 2026
Forecast Valid:
7am EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
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