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.

A Few Clouds

84°F

29°C

Humidity 57%
Wind Speed SE 7 mph
Barometer 30.35 in (1027.6 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 19 Jun 10:56 am EDT
Extended Forecast for

Hummelstown PA

Heat Advisory June 19, 11:43am until June 22, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 19, 11:43am until June 22, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Juneteenth

    High: 93 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 94. Calm wind becoming south around 6 mph in the afternoon.

    High: 94 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy

  • Friday

    Friday: Isolated showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 98 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Friday Night

    Friday Night: Isolated showers and thunderstorms before 2am. Partly cloudy, with a low around 72. Chance of precipitation is 20%.

    Low: 72 °F

    Isolated
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Chance of precipitation is 30%.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Juneteenth
Sunny and hot, with a high near 93. South wind 5 to 8 mph.
Tonight
Partly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny and hot, with a high near 94. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening.
Friday
Isolated showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Isolated showers and thunderstorms before 2am. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 96. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 65. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 90.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Hummelstown PA
 40.26°N 76.73°W (Elev. 335 ft)
Last Update:
10:54 am EDT Jun 19, 2024
Forecast Valid:
11am EDT Jun 19, 2024-6pm EDT Jun 25, 2024
 
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