National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg, Harrisburg International Airport (KMDT)

Lat: 40.19°NLon: 76.76°WElev: 312ft.

Partly Cloudy

14°C

57°F

Humidity 87%
Wind Speed Calm
Barometer 1016.8 mb (30.03 in)
Dewpoint 12°C (53°F)
Visibility 16 km
Last update 14 Apr 6:56 am EDT
Extended Forecast for

Harrisburg International Airport PA

  • Today

    Today: A chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 29. Light southwest wind increasing to 13 to 18 km/h in the morning. Winds could gust as high as 34 km/h. Chance of precipitation is 30%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    High: 29 °C

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 17. West wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.

    Low: 17 °C

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 31. Light southwest wind increasing to 13 to 18 km/h in the morning. Chance of precipitation is 20%.

    High: 31 °C

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 18. Southwest wind 3 to 8 km/h. Chance of precipitation is 20%.

    Low: 18 °C

    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 30. Light southwest wind increasing to 8 to 13 km/h in the morning.

    High: 30 °C

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 18. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.

    Low: 18 °C

    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 26. Chance of precipitation is 40%.

    High: 26 °C

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 14. Chance of precipitation is 30%.

    Low: 14 °C

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 27.

    High: 27 °C

    Mostly Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 29. Light southwest wind increasing to 13 to 18 km/h in the morning. Winds could gust as high as 34 km/h. Chance of precipitation is 30%. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Mostly cloudy, with a low around 17. West wind 5 to 10 km/h becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Mostly sunny, with a high near 31. Light southwest wind increasing to 13 to 18 km/h in the morning. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 18. Southwest wind 3 to 8 km/h. Chance of precipitation is 20%.
Thursday
Partly sunny, with a high near 30. Light southwest wind increasing to 8 to 13 km/h in the morning.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 18. Chance of precipitation is 30%. New precipitation amounts of less than 1 mm possible.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 26. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 14. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 27.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 13. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 19. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Mostly sunny, with a high near 14.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg International Airport PA
 40.22°N 76.76°W (Elev. 446 m)
Last Update:
2:21 am EDT Apr 14, 2026
Forecast Valid:
7am EDT Apr 14, 2026-6pm EDT Apr 20, 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