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.

Light Snow and Breezy

37°F

3°C

Humidity 54%
Wind Speed W 25 G 36 mph
Barometer 30.09 in (1019.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 28 Nov 1:56 pm EST
Extended Forecast for

2 Miles W Mount Gretna PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 40. Breezy, with a west wind 18 to 20 mph, with gusts as high as 38 mph.

    High: 40 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 27. West wind 10 to 16 mph, with gusts as high as 24 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 41. West wind 5 to 9 mph becoming light in the afternoon.

    High: 41 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 29. Calm wind becoming southeast 5 to 9 mph after midnight.

    Low: 29 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain and snow likely, becoming all rain after 10am. Cloudy, with a high near 43. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Rain likely, possibly mixed with snow. Cloudy, with a high near 36. Chance of precipitation is 70%.

    High: 36 °F

    Rain/Snow
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 40. Breezy, with a west wind 18 to 20 mph, with gusts as high as 38 mph.
Tonight
Mostly clear, with a low around 27. West wind 10 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 41. West wind 5 to 9 mph becoming light in the afternoon.
Saturday Night
Increasing clouds, with a low around 29. Calm wind becoming southeast 5 to 9 mph after midnight.
Sunday
Rain and snow likely, becoming all rain after 10am. Cloudy, with a high near 43. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 39.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Rain likely, possibly mixed with snow. Cloudy, with a high near 36. Chance of precipitation is 70%.
Tuesday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 38.
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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:
1:05 pm EST Nov 28, 2025
Forecast Valid:
2pm EST Nov 28, 2025-6pm EST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation