Current conditions at
Harrisburg, Harrisburg International Airport (KMDT)
Lat: 40.19°NLon: 76.76°WElev: 312ft.
A Few Clouds
81°F
27°C
| Humidity | 47% |
| Wind Speed | W 9 mph |
| Barometer | 29.98 in (1015.0 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 11 Sep 3:56 pm EDT |
Extended Forecast for
Hummelstown PA
Tonight

Low: 61 °F
Partly Cloudy
Saturday

High: 82 °F
Mostly Cloudy
Saturday Night
Low: 68 °F
Chance
T-storms then
Heavy RainSunday
High: 84 °F
Showers
Likely then
Chance
ShowersSunday Night

Low: 64 °F
Partly Cloudy
Monday

High: 77 °F
Sunny
Monday Night

Low: 52 °F
Mostly Clear
Tuesday

High: 76 °F
Sunny
Tuesday Night

Low: 58 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 61. Light east wind.
Saturday
Mostly cloudy, with a high near 82. East wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Some of the storms could produce heavy rainfall. Low around 68. Southeast wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 2pm. Cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming northwest 5 to 7 mph in the morning. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Partly cloudy, with a low around 64. West wind 3 to 7 mph.
Monday
Sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 79.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Hummelstown PA
40.26°N 76.7°W (Elev. 427 ft)
40.26°N 76.7°W (Elev. 427 ft)
2:21 pm EDT Sep 11, 2026
4pm EDT Sep 11, 2026-6pm EDT Sep 18, 2026


