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.

Mostly Cloudy

83°F

28°C

Humidity 72%
Wind Speed SE 8 mph
Barometer 30.02 in (1016.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 12 Jul 8:56 pm EDT
Extended Forecast for

Harrisburg International Airport PA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 74. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 85. Southeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 8pm, then showers and possibly a thunderstorm, mainly after 8pm. Low around 73. South wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    T-storms then
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Showers
    Likely then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 74. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 85. Southeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and thunderstorms before 8pm, then showers and possibly a thunderstorm, mainly after 8pm. Low around 73. South wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 88. Calm wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 86. 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:
7:38 pm EDT Jul 12, 2025
Forecast Valid:
9pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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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