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

51°F

11°C

Humidity 66%
Wind Speed NW 17 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 8 Nov 6:56 am EST
Extended Forecast for

Hummelstown PA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 63. West wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 63 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 43. West wind 7 to 10 mph.

    Low: 43 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 60. Northwest wind 11 to 18 mph, with gusts as high as 29 mph.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. West wind 5 to 9 mph.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 66. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.

    High: 56 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 63. West wind 8 to 13 mph, with gusts as high as 23 mph.
Tonight
Increasing clouds, with a low around 43. West wind 7 to 10 mph.
Monday
Mostly sunny, with a high near 60. Northwest wind 11 to 18 mph, with gusts as high as 29 mph.
Monday Night
Partly cloudy, with a low around 38. West wind 5 to 9 mph.
Tuesday
Sunny, with a high near 66. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 40.
Veterans Day
Mostly sunny, with a high near 64.
Wednesday Night
Mostly cloudy, with a low around 40.
Thursday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
A chance of showers. Mostly cloudy, with a high near 49. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
Partly sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.7°W (Elev. 427 ft)
Last Update:
7:11 am EST Nov 8, 2026
Forecast Valid:
7am EST Nov 8, 2026-6pm EST Nov 14, 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