No
you don't need a jacket based on the weather in Hummelstown, PA 17036, USA 1 second ago
72°F22°C & Clear
Wind is 4 mph6 km/h from the Northeast, gusting to 6 mph10 km/h
| August 15 | ||||
| 8am | 74°F24°C | 5 mph9 km/h Northeast | Mostly Clear | |
| 9am | 77°F25°C | 6 mph10 km/h East | Mostly Clear | |
| 10am | 80°F27°C | 6 mph9 km/h East | Mostly Clear | |
| 11am | 83°F28°C | 6 mph10 km/h East | Mostly Clear | |
| 12pm | 85°F29°C | 5 mph8 km/h East | Clear | |
| 1pm | 86°F30°C | 6 mph9 km/h East | Mostly Clear | |
| 2pm | 87°F31°C | 5 mph9 km/h East | Mostly Clear | |
| 3pm | 87°F31°C | 4 mph7 km/h East | Mostly Clear | |
| 4pm | 87°F31°C | 5 mph7 km/h Southeast | Mostly Clear | |
| 5pm | 86°F30°C | 5 mph8 km/h Southeast | Mostly Clear | |
| 6pm | 85°F29°C | 6 mph9 km/h Southeast | Mostly Clear | |
| 7pm | 83°F28°C | 3 mph5 km/h Southeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 15 | 71°F21°C | 88°F31°C | 5 mph8 km/h from East | Mostly Clear | Partly Cloudy |
| August 16 | 71°F22°C | 85°F30°C | 3 mph5 km/h from South | Rain | Mostly Clear |
| August 17 | 69°F21°C | 88°F31°C | 4 mph7 km/h from West | Mostly Clear | Partly Cloudy |
| August 18 | 70°F21°C | 82°F28°C | 6 mph9 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| August 19 | 65°F19°C | 74°F23°C | 8 mph13 km/h from East | Rain | Rain |
| August 20 | 64°F18°C | 75°F24°C | 5 mph8 km/h from East | Drizzle | Mostly Cloudy |
| August 21 | 65°F18°C | 77°F25°C | 6 mph9 km/h from North | Partly Cloudy | Mostly Clear |
No
Low of 71°F22°C, High of 85°F30°CWind: 3 mph5 km/h
Precipitation: 32% rain