South Mountain, Pennsylvania Weather
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Weather Forecast for South Mountain, Pennsylvania : Franklin County
Issued: 7:48 pm EDT Jul 3, 2025 Latitude: 39.8464817 Longitude: -77.4877663 View on Google Maps

MouseOver for Detail Forecast
Overnight Independence Day Saturday Sunday Monday Tuesday Wednesday Thursday
Clear on Overnight Sunny on Independence Day Sunny on Saturday Sunny on Sunday 30% chance of thunderstorms on Monday 50% chance of thunderstorms on Tuesday 30% chance of on Wednesday 60% chance of thunderstorms on Thursday
Low: 58°F High: 80°F High: 82°F High: 84°F High: 85°F High: 83°F High: 83°F High: 81°F
Low: 59°F Low: 63°F Low: 66°F Low: 68°F Low: 66°F Low: 65°F  
Clear Sunny Sunny Sunny Thunderstorms Thunderstorms Partly Sunny Thunderstorms
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Current Conditions at
HAGERSTOWN - (KHGR)
73°
Clear
as of 12:53 AM EDST
Rel. Humidity: 53%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
5 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
FREDERICK MUNICIPAL AIR - (KFDK)
70°
Clear
as of 1:20 AM EDST
Rel. Humidity: 77%
Dew Point: 63°F
Pressure: 30.04 in.
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
COLLEGE PARK ARPT - (KCGS)
77°
Clear
as of 1:20 AM EDST
Rel. Humidity: 61%
Dew Point: 63°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
6 MPH
340° North
Cloud Level(s): Clear
Current Conditions at
YORK - (KTHV)
66°
Clear
as of 12:53 AM EDST
Rel. Humidity: 82%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Clear on Overnight Overnight... Clear, with a low around 58. Northwest wind 3 to 5 mph.
Sunny on Independence Day Independence Day... Sunny, with a high near 80. Calm wind becoming north around 5 mph.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 59. Calm wind.
Sunny on Saturday Saturday... Sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 63. South wind 3 to 5 mph.
Sunny on Sunday Sunday... Sunny, with a high near 84.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 66.
30% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
30% chance of thunderstorms Monday Night Monday Night... A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
50% chance of thunderstorms Tuesday Tuesday... A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
30% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
30% chance of Wednesday Wednesday... A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
30% chance of rain Wednesday Night Wednesday Night... A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
60% chance of thunderstorms Thursday Thursday... Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Current Radar Image


Sun Almanac for South Mountain, Pennsylvania
Sunrise: 05:47 AM
Sunset: 8:42 PM
Civil Sunrise:05:15 AM
Civil Sunset: 9:14 PM
Nautical Sunrise: 04:34 AM
Nautical Sunset: 9:55 PM
Astro Sunrise: 03:47 AM
Astro Sunset: 10:42 PM
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