National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Fair

29°F

-2°C

Humidity 82%
Wind Speed E 3 mph
Barometer 30.07 in (1018.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 3 Dec 7:56 pm EST
Extended Forecast for

2 Miles W Mount Gretna PA

  • Tonight

    Tonight: Partly cloudy, with a low around 23. West wind 3 to 7 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 37. West wind 8 to 16 mph, with gusts as high as 31 mph.

    High: 37 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. Northwest wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: A chance of light snow, mainly after 1pm. Increasing clouds, with a high near 29. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 40%.

    High: 29 °F

    Chance Light
    Snow

  • Friday Night

    Friday Night: A slight chance of light snow before 1am. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.

    Low: 19 °F

    Slight Chance
    Light Snow

  • Saturday

    Saturday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 23. West wind 3 to 7 mph.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 37. West wind 8 to 16 mph, with gusts as high as 31 mph.
Thursday Night
Partly cloudy, with a low around 13. Northwest wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 22 mph.
Friday
A chance of light snow, mainly after 1pm. Increasing clouds, with a high near 29. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 40%.
Friday Night
A slight chance of light snow before 1am. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 36.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly cloudy, with a high near 38.
Sunday Night
Mostly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 32.
Tuesday Night
Mostly cloudy, with a low around 24.
Wednesday
A chance of rain. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Mount Gretna PA
 40.24°N 76.5°W (Elev. 673 ft)
Last Update:
7:05 pm EST Dec 3, 2025
Forecast Valid:
8pm EST Dec 3, 2025-6pm EST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation