Greencastle, Pennsylvania Weather
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Weather Forecast for Greencastle, Pennsylvania : Franklin County
Issued: 6:03 am EDT Sep 3, 2025 Latitude: 39.790371 Longitude: -77.7277714 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
Sunny on Today Mostly Clear on Tonight 70% chance of thunderstorms on Thursday Sunny on Friday 60% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday
High: 83°F Low: 59°F High: 86°F High: 88°F High: 80°F High: 75°F High: 76°F High: 76°F
Low: 60°F Low: 63°F Low: 54°F Low: 50°F Low: 51°F  
Sunny Mostly Clear Thunderstorms Sunny Rain Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
HAGERSTOWN - (KHGR)
57°
Clear
as of 5:53 AM EDST
Rel. Humidity: 82%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
5 MPH
080° East
Cloud Level(s): Clear
Current Conditions at
MARTINSBURG - (KMRB)
48°
Clear
as of 5:53 AM EDST
Rel. Humidity: 93%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
3 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
FREDERICK MUNICIPAL AIR - (KFDK)
52°
Clear
as of 6:00 AM EDST
Rel. Humidity: 93%
Dew Point: 50°F
Pressure: 30.01 in.
Wind Data
Calm
Current Conditions at
COLLEGE PARK ARPT - (KCGS)
54°
Clear
as of 6:15 AM EDST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 83. Calm wind becoming south around 6 mph in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. Southeast wind around 6 mph.
70% chance of thunderstorms Thursday Thursday... Showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 86. South wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
60% chance of thunderstorms Thursday Night Thursday Night... Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 60. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunny on Friday Friday... Sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the morning.
20% chance of rain Friday Night Friday Night... A slight chance of showers after 2am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
60% chance of rain Saturday Saturday... Showers likely, mainly after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
60% chance of rain Saturday Night Saturday Night... Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 75.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 50.
Sunny on Monday Monday... Sunny, with a high near 76.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 51.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 76.
Current Radar Image


Sun Almanac for Greencastle, Pennsylvania
Sunrise: 06:41 AM
Sunset: 7:39 PM
Civil Sunrise:06:14 AM
Civil Sunset: 8:06 PM
Nautical Sunrise: 05:41 AM
Nautical Sunset: 8:39 PM
Astro Sunrise: 05:07 AM
Astro Sunset: 9:13 PM
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