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 with Haze

66°F

19°C

Humidity 84%
Wind Speed NE 6 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 61°F (16°C)
Visibility 6.00 mi
Last update 14 Jun 6:56 pm EDT
Extended Forecast for

3 Miles SSW Hummelstown PA

  • Tonight

    Tonight: A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, cloudy, with a low around 61. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, cloudy, with a low around 60. East wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly before 2pm. Cloudy, with a high near 71. East wind around 7 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 9am, then a chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, cloudy, with a low around 61. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 5pm. Patchy fog before noon. Otherwise, cloudy, with a high near 69. East wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, cloudy, with a low around 60. East wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly before 2pm. Cloudy, with a high near 71. 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 slight chance of showers. Cloudy, with a low around 63. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 9am, then a chance of showers after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Wednesday Night
A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Juneteenth
Showers likely, mainly after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Hummelstown PA
 40.24°N 76.73°W (Elev. 305 ft)
Last Update:
5:17 pm EDT Jun 14, 2025
Forecast Valid:
7pm EDT Jun 14, 2025-6pm EDT Jun 21, 2025
 
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