Mount Gretna, Pennsylvania Weather
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Weather Forecast for Mount Gretna, Pennsylvania : Lebanon County
Issued: 6:03 am EDT Sep 3, 2025 Latitude: 40.2475928 Longitude: -76.4694104 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
Sunny on Today Mostly Clear on Tonight 60% chance of thunderstorms on Thursday Mostly Sunny on Friday 60% chance of on Saturday Mostly Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday
High: 79°F Low: 59°F High: 83°F High: 85°F High: 80°F High: 73°F High: 74°F High: 74°F
Low: 62°F Low: 64°F Low: 55°F Low: 50°F Low: 52°F  
Sunny Mostly Clear Thunderstorms Mostly Sunny Partly Sunny Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
LANCASTER - (KLNS)
59°
Clear
as of 7:53 AM EDST
Rel. Humidity: 87%
Dew Point: 55°F
Visibility: 8 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MUIR AAF - (KMUI)
55°
Mostly Clear
as of 7:55 AM EDST
Rel. Humidity: 100%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 8000ft, Few at 25000ft
Current Conditions at
MIDDLETWN/HARRISB - (KMDT)
59°
Mostly Clear
as of 7:56 AM EDST
Rel. Humidity: 82%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
3 MPH
100° East
Cloud Level(s): Few at 25000ft
Current Conditions at
HARRISBURG - (KCXY)
57°
Clear
as of 7:56 AM EDST
Rel. Humidity: 93%
Dew Point: 55°F
Visibility: 7 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 79. Light south wind.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. South wind around 6 mph.
60% chance of thunderstorms Thursday Thursday... Showers likely and possibly a thunderstorm, mainly after 5pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 83. South wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. 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 likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Mostly cloudy, with a low around 62. South wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 64.
60% chance of Saturday Saturday... Showers likely, mainly after 2pm. Partly sunny, 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 55. Chance of precipitation is 60%.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 73.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 50.
Sunny on Monday Monday... Sunny, with a high near 74.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 52.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 74.
Current Radar Image


Sun Almanac for Mount Gretna, Pennsylvania
Sunrise: 06:36 AM
Sunset: 7:34 PM
Civil Sunrise:06:08 AM
Civil Sunset: 8:02 PM
Nautical Sunrise: 05:35 AM
Nautical Sunset: 8:35 PM
Astro Sunrise: 05:01 AM
Astro Sunset: 9:09 PM
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