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.

Mostly Cloudy

66°F

19°C

Humidity 49%
Wind Speed S 15 mph
Barometer 30.28 in (1025.5 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Apr 3:56 pm EDT
Extended Forecast for

Hummelstown PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. Southeast wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, mainly between 10am and 5pm. Mostly cloudy, with a high near 78. Southwest wind 9 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. West wind 3 to 8 mph.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 62. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 62.

    Low: 62 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. Southeast wind 8 to 14 mph, with gusts as high as 25 mph.
Monday
A chance of showers, mainly between 10am and 5pm. Mostly cloudy, with a high near 78. Southwest wind 9 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 57. West wind 3 to 8 mph.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 62. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Mostly cloudy, with a low around 63.
Thursday
Partly sunny, with a high near 87.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 79. 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:
2:21 pm EDT Apr 12, 2026
Forecast Valid:
4pm EDT Apr 12, 2026-6pm EDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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