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.

A Few Clouds

67°F

19°C

Humidity 76%
Wind Speed SE 5 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 13 Oct 10:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Sunny, with a high near 80. Southwest wind 5 to 11 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, mainly between 10am and 5pm. Increasing clouds, with a high near 83. West wind 3 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57. North wind around 7 mph.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68. North wind 3 to 6 mph.

    High: 68 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43. Breezy.

    Low: 43 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55. Breezy.

    High: 55 °F

    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 80. Southwest wind 5 to 11 mph.
Tonight
Mostly clear, with a low around 64. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
A chance of showers, mainly between 10am and 5pm. Increasing clouds, with a high near 83. West wind 3 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly cloudy, with a low around 57. North wind around 7 mph.
Thursday
Mostly sunny, with a high near 68. North wind 3 to 6 mph.
Thursday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 75. Breezy. Chance of precipitation is 60%.
Friday Night
Partly cloudy, with a low around 43. Breezy.
Saturday
Sunny, with a high near 55. Breezy.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Areas of frost. Otherwise, sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 39.
Monday
Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.2°N 76.74°W (Elev. 308 ft)
Last Update:
8:06 am EDT Oct 13, 2026
Forecast Valid:
11am EDT Oct 13, 2026-6pm EDT Oct 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