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

25°F

-4°C

Humidity 78%
Wind Speed SE 3 mph
Barometer 30.00 in (1016.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 5 Dec 10:56 pm EST
Extended Forecast for

2 Miles W Mount Gretna PA

  • Tonight

    Tonight: Cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 40. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 40 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. West wind 3 to 6 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 39. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 39 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 23. Light and variable wind becoming northwest 5 to 10 mph in the evening.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 23. Calm wind.
Saturday
Mostly cloudy, with a high near 40. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 25. West wind 3 to 6 mph.
Sunday
Mostly cloudy, with a high near 39. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 23. Light and variable wind becoming northwest 5 to 10 mph in the evening.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
A chance of showers after 1pm. Cloudy, with a high near 43. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 37.
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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:
10:56 pm EST Dec 5, 2025
Forecast Valid:
11pm EST Dec 5, 2025-6pm EST Dec 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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