News Headlines
- When does the first frost occur in Central PA? See when the first 36 degree temperatures typically occur.
- A 5th tornado has been determined to have occurred in Central PA (Burnside Twp in northern Centre County) on July 18th, 2026. See details.
- See information on the Cyclone (PA) Tornado of Sept 9th, 2026
Current conditions at
Harrisburg, Harrisburg International Airport (KMDT)
Lat: 40.19°NLon: 76.76°WElev: 312ft.
Overcast
58°F
14°C
| Humidity | 90% |
| Wind Speed | NW 3 mph |
| Barometer | 29.86 in (1011.2 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 3.00 mi |
| Last update | 26 Sep 6:56 pm EDT |
Extended Forecast for
Hummelstown PA
Tonight
Low: 57 °F
Chance Rain
then Mostly
CloudySunday
High: 65 °F
Rain
Sunday Night
Low: 59 °F
Chance Rain
Monday
High: 71 °F
Mostly Cloudy
Monday Night
Low: 59 °F
Mostly Cloudy
Tuesday
High: 75 °F
Partly Sunny
Tuesday Night
Low: 58 °F
Partly Cloudy
Wednesday
High: 79 °F
Mostly Sunny
Wednesday Night
Low: 60 °F
Mostly Cloudy
Detailed Forecast
Tonight
A chance of rain before 11pm, then a slight chance of rain after 5am. Cloudy, with a low around 57. North wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Rain. High near 65. Northwest wind around 18 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
A chance of rain between 1am and 3am. Mostly cloudy, with a low around 59. North wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly cloudy, with a high near 71. Northwest wind around 10 mph.
Monday Night
Mostly cloudy, with a low around 59. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
Partly sunny, with a high near 78.
Friday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Hummelstown PA
40.26°N 76.73°W (Elev. 335 ft)
40.26°N 76.73°W (Elev. 335 ft)
6:36 pm EDT Sep 26, 2026
7pm EDT Sep 26, 2026-6pm EDT Oct 3, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
