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

68°F

20°C

Humidity 78%
Wind Speed SE 6 mph
Barometer 29.93 in (1013.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 14 Oct 1:53 am EDT
Extended Forecast for

Greencastle PA

  • Overnight

    Overnight: Clear, with a low around 64. Light south wind.

    Low: 64 °F

    Clear

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 85. Light and variable wind becoming west 5 to 8 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: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight. Mostly cloudy, with a low around 56. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly after 11am. Partly sunny, with a high near 65. Northeast wind around 6 mph becoming light and variable in the morning. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Cloudy, with a low around 56. South wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.

    Low: 42 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 2am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

Detailed Forecast

Overnight
Clear, with a low around 64. Light south wind.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 85. Light and variable wind becoming west 5 to 8 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.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and midnight. Mostly cloudy, with a low around 56. North wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly after 11am. Partly sunny, with a high near 65. Northeast wind around 6 mph becoming light and variable in the morning. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of showers. Cloudy, with a low around 56. South wind 5 to 9 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 55.
Saturday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 34.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 37.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle PA
 39.78°N 77.74°W (Elev. 548 ft)
Last Update:
2:06 am EDT Oct 14, 2026
Forecast Valid:
2am EDT Oct 14, 2026-6pm EDT Oct 20, 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