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

29°F

-2°C

Humidity 69%
Wind Speed NW 3 mph
Barometer 30.19 in (1022.6 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 5 Jan 12:56 am EST
Extended Forecast for

Harrisburg International Airport PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 38. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 38 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. Southeast wind around 5 mph becoming calm in the evening.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 45. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 45 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 1am. Mostly cloudy, with a low around 38. Southeast wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. Calm wind.
Monday
Mostly cloudy, with a high near 38. Light southeast wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 28. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 45. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers before 1am. Mostly cloudy, with a low around 38. Southeast wind 5 to 9 mph becoming west after midnight. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Friday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 60%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 41.
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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:
1:36 am EST Jan 5, 2026
Forecast Valid:
1am EST Jan 5, 2026-6pm EST Jan 11, 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