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.

Fair

72°F

22°C

Humidity 38%
Wind Speed NW 12 mph
Barometer 29.98 in (1015.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 15 May 3:53 pm EDT
Extended Forecast for

Greencastle PA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Calm wind becoming south 5 to 9 mph in the morning.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 85. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Northwest wind 5 to 9 mph becoming calm in the evening.
Saturday
Sunny, with a high near 83. Calm wind becoming south 5 to 9 mph in the morning.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 61. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 85. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 64. Calm wind.
Monday
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 91. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny and hot, with a high near 95.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 53.
Friday
A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle PA
 39.78°N 77.74°W (Elev. 548 ft)
Last Update:
2:21 pm EDT May 15, 2026
Forecast Valid:
4pm EDT May 15, 2026-6pm EDT May 22, 2026
 
Forecast Discussion
 
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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