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.

Fair

50°F

10°C

Humidity 93%
Wind Speed Calm
Barometer 29.96 in (1014.7 mb)
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Last update 23 Apr 5:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: Sunny, with a high near 75. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Light northeast wind.

    Low: 49 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers after 2pm. Mostly sunny, with a high near 70. Calm wind. Chance of precipitation is 20%.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 49. Calm wind becoming east 5 to 7 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 57. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 57 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 2am. Cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before 8am. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.

    High: 61 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 75. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tonight
Partly cloudy, with a low around 49. Light northeast wind.
Friday
A slight chance of showers after 2pm. Mostly sunny, with a high near 70. Calm wind. Chance of precipitation is 20%.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 49. Calm wind becoming east 5 to 7 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers. High near 57. East wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely, mainly before 2am. Cloudy, with a low around 44. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of showers before 8am. Mostly cloudy, with a high near 61. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 65.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Tuesday
Showers. High near 64. Chance of precipitation is 80%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Wednesday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.2°N 76.77°W (Elev. 299 ft)
Last Update:
4:51 am EDT Apr 23, 2026
Forecast Valid:
6am EDT Apr 23, 2026-6pm EDT Apr 29, 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