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.

Fog/Mist

41°F

5°C

Humidity 96%
Wind Speed E 6 mph
Barometer 30.28 in (1025.7 mb)
Dewpoint 40°F (4°C)
Visibility 0.75 mi
Wind Chill37°F (3°C)
Last update 6 Mar 7:56 am EST
Extended Forecast for

Hummelstown PA

  • Today

    Today: A slight chance of rain after noon. Areas of fog before 9am. Otherwise, cloudy, with a high near 46. East wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 46 °F

    Areas Fog
    then Slight
    Chance Rain

  • Tonight

    Tonight: A chance of rain, mainly before 9pm. Cloudy, with a low around 42. Southeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 42 °F

    Chance Rain

  • Saturday

    Saturday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 61. Southeast wind 5 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 61 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 56. South wind 7 to 9 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 56 °F

    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 61. West wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 61 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of rain after noon. Areas of fog before 9am. Otherwise, cloudy, with a high near 46. East wind 5 to 7 mph. Chance of precipitation is 20%.
Tonight
A chance of rain, mainly before 9pm. Cloudy, with a low around 42. Southeast wind around 6 mph. Chance of precipitation is 30%.
Saturday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 61. Southeast wind 5 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 56. South wind 7 to 9 mph becoming southwest after midnight. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, with a high near 61. West wind 8 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Wednesday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 53. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.73°W (Elev. 335 ft)
Last Update:
7:01 am EST Mar 6, 2026
Forecast Valid:
8am EST Mar 6, 2026-6pm EDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation