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

46°F

8°C

Humidity 58%
Wind Speed NW 17 G 25 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 27 Mar 11:56 am EDT
Extended Forecast for

Hummelstown PA

  • This Afternoon

    This Afternoon: A slight chance of rain before 3pm. Mostly cloudy, with a high near 50. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Partly cloudy, with a low around 29. North wind 5 to 10 mph.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 44. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29. West wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56. South wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.

    Low: 49 °F

    Chance Rain

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.

    High: 69 °F

    Chance Rain

Detailed Forecast

This Afternoon
A slight chance of rain before 3pm. Mostly cloudy, with a high near 50. North wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 29. North wind 5 to 10 mph.
Saturday
Sunny, with a high near 44. Northwest wind 10 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 29. West wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 56. South wind 5 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Partly sunny, with a high near 61.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Tuesday Night
A chance of rain before 2am. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Wednesday
A chance of rain. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
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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:
8:05 am EDT Mar 27, 2026
Forecast Valid:
12pm EDT Mar 27, 2026-6pm EDT Apr 2, 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