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.

Mostly Cloudy

42°F

6°C

Humidity 49%
Wind Speed NW 8 mph
Barometer 30.21 in (1023.4 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 18 Nov 9:56 am EST
Extended Forecast for

2 Miles W Mount Gretna PA

  • Today

    Today: A slight chance of rain between 1pm and 4pm. Mostly cloudy, with a high near 44. West wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 44 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Rain, mainly before 4am. Low around 37. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48. Northeast wind around 5 mph becoming light and variable in the afternoon.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 48. Calm wind becoming southeast around 5 mph.

    High: 48 °F

    Cloudy

  • Thursday Night

    Thursday Night: A chance of rain, mainly after 1am. Cloudy, with a low around 43. Chance of precipitation is 30%.

    Low: 43 °F

    Chance Rain

  • Friday

    Friday: A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.

    High: 57 °F

    Chance Rain

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.

    Low: 41 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain before 1pm. Mostly sunny, with a high near 50. Chance of precipitation is 30%.

    High: 50 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of rain between 1pm and 4pm. Mostly cloudy, with a high near 44. West wind 6 to 8 mph. Chance of precipitation is 20%.
Tonight
Rain, mainly before 4am. Low around 37. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Mostly cloudy, with a high near 48. Northeast wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 37. Calm wind.
Thursday
Cloudy, with a high near 48. Calm wind becoming southeast around 5 mph.
Thursday Night
A chance of rain, mainly after 1am. Cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.
Saturday
A chance of rain before 1pm. Mostly sunny, with a high near 50. Chance of precipitation is 30%.
Saturday Night
A chance of rain before 1am. Partly cloudy, with a low around 33. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 54.
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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:
9:46 am EST Nov 18, 2025
Forecast Valid:
10am EST Nov 18, 2025-6pm EST Nov 24, 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