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.

Partly Cloudy

59°F

15°C

Humidity 46%
Wind Speed NW 20 G 29 mph
Barometer 29.91 in (1012.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 9 Nov 11:56 am EST
Extended Forecast for

Hummelstown PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 61. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 34 mph.

    High: 61 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 38. Northwest wind 5 to 9 mph becoming light west after midnight.

    Low: 38 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 68. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 68 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39. West wind 5 to 7 mph becoming calm after midnight.

    Low: 39 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 65. Calm wind becoming west around 6 mph.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 20%.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain, mainly after 1pm. High near 60. Chance of precipitation is 90%.

    High: 60 °F

    Chance Rain
    then Rain

  • Thursday Night

    Thursday Night: Showers. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.

    High: 51 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 61. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 34 mph.
Tonight
Increasing clouds, with a low around 38. Northwest wind 5 to 9 mph becoming light west after midnight.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 68. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 39. West wind 5 to 7 mph becoming calm after midnight.
Veterans Day
Mostly sunny, with a high near 65. Calm wind becoming west around 6 mph.
Wednesday Night
A slight chance of rain after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 20%.
Thursday
Rain, mainly after 1pm. High near 60. Chance of precipitation is 90%.
Thursday Night
Showers. Low around 39. Chance of precipitation is 80%.
Friday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.
Friday Night
A chance of showers before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 54.
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 76.73°W (Elev. 335 ft)
Last Update:
7:21 am EST Nov 9, 2026
Forecast Valid:
12pm EST Nov 9, 2026-6pm EST Nov 15, 2026
 
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