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.

Overcast

38°F

3°C

Humidity 51%
Wind Speed NW 14 G 28 mph
Barometer 30.23 in (1024.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 30 Nov 11:56 pm EST
Extended Forecast for

2 Miles W Mount Gretna PA

  • Overnight

    Overnight: Mostly clear, with a low around 30. West wind around 14 mph, with gusts as high as 23 mph.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 40. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 40 °F

    Sunny

  • Monday Night

    Monday Night: Snow likely after 1am. Increasing clouds, with a low around 27. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 27 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday

    Tuesday: Snow before 10am, then snow, possibly mixed with rain. The snow could be heavy at times. High near 36. Southeast wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 36 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 23. Northwest wind around 10 mph.

    Low: 23 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 30. West wind around 14 mph, with gusts as high as 23 mph.
Monday
Sunny, with a high near 40. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Snow likely after 1am. Increasing clouds, with a low around 27. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Snow before 10am, then snow, possibly mixed with rain. The snow could be heavy at times. High near 36. Southeast wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Tuesday Night
Partly cloudy, with a low around 23. Northwest wind around 10 mph.
Wednesday
Mostly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Partly sunny, with a high near 29.
Friday Night
A chance of snow. Cloudy, with a low around 24. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 37. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly cloudy, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Mount Gretna PA
 40.24°N 76.5°W (Elev. 673 ft)
Last Update:
7:06 pm EST Nov 30, 2025
Forecast Valid:
12am EST Dec 1, 2025-6pm EST Dec 7, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation