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

64°F

18°C

Humidity 81%
Wind Speed E 9 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 Jun 2:56 pm EDT
Extended Forecast for

Hummelstown PA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Cloudy, with a high near 67. East wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Cloudy, with a low around 60. East wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly before 3pm. Cloudy, with a high near 70. East wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly after 8pm. Cloudy, with a low around 62. East wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 76. Southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Showers likely after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Cloudy, with a high near 67. East wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Cloudy, with a low around 60. East wind around 6 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly before 3pm. Cloudy, with a high near 70. East wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers, mainly after 8pm. Cloudy, with a low around 62. East wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 76. Southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 71.
Juneteenth
Showers likely after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Thursday Night
Showers likely before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
3:18 pm EDT Jun 15, 2025
Forecast Valid:
3pm EDT Jun 15, 2025-6pm EDT Jun 22, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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