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

39°F

4°C

Humidity 48%
Wind Speed W 10 mph
Barometer 30.16 in (1021.6 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Jan 2:56 pm EST
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: Mostly clear, with a low around 27. Southwest wind 6 to 8 mph.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. South wind 5 to 10 mph.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Cloudy, with a low around 36. Southwest wind 7 to 10 mph.

    Low: 36 °F

    Cloudy

  • Wednesday

    Wednesday: A chance of showers. Cloudy, with a high near 47. Southwest wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Rain showers likely before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 27. Light and variable wind becoming northwest 5 to 10 mph in the evening. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of snow showers before 1pm. Partly sunny, with a high near 33. Chance of precipitation is 30%.

    High: 33 °F

    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

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

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 48. South wind 5 to 10 mph.
Tuesday Night
Cloudy, with a low around 36. Southwest wind 7 to 10 mph.
Wednesday
A chance of showers. Cloudy, with a high near 47. Southwest wind around 7 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain showers likely before 1am, then a chance of rain and snow showers. Mostly cloudy, with a low around 27. Light and variable wind becoming northwest 5 to 10 mph in the evening. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow showers before 1pm. Partly sunny, with a high near 33. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Partly sunny, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 22.
Sunday
Partly sunny, with a high near 31.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.2°N 76.77°W (Elev. 299 ft)
Last Update:
1:11 pm EST Jan 12, 2026
Forecast Valid:
3pm EST Jan 12, 2026-6pm EST Jan 19, 2026
 
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