Yes
you do need a jacket based on the weather in Hummelstown, PA 17036, USA 1 second ago
Why? Because it's fairly windy outside!
78°F26°C & Clear
Wind is 11 mph17 km/h from the South, gusting to 21 mph34 km/h
| September 5 | ||||
| 1pm | 79°F26°C | 11 mph18 km/h Southwest | Partly Cloudy | |
| 2pm | 82°F28°C | 12 mph20 km/h Southwest | Mostly Clear | |
| 3pm | 83°F28°C | 12 mph19 km/h Southwest | Mostly Clear | |
| 4pm | 84°F29°C | 11 mph18 km/h Southwest | Mostly Clear | |
| 5pm | 84°F29°C | 10 mph16 km/h Southwest | Mostly Clear | |
| 6pm | 82°F28°C | 9 mph14 km/h South | Mostly Clear | |
| 7pm | 80°F26°C | 6 mph10 km/h South | Mostly Clear | |
| 8pm | 77°F25°C | 5 mph8 km/h South | Partly Cloudy | |
| 9pm | 75°F24°C | 5 mph8 km/h South | Mostly Clear | |
| 10pm | 74°F23°C | 5 mph9 km/h South | Mostly Clear | |
| 11pm | 73°F23°C | 5 mph9 km/h South | Mostly Clear | |
| September 6 | ||||
| 12am | 72°F22°C | 5 mph8 km/h South | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 5 | 62°F17°C | 84°F29°C | 8 mph12 km/h from South | Mostly Clear | Partly Cloudy |
| September 6 | 63°F17°C | 78°F26°C | 5 mph8 km/h from Northwest | Rain | Rain |
| September 7 | 57°F14°C | 72°F22°C | 7 mph10 km/h from Northwest | Mostly Clear | Clear |
| September 8 | 51°F10°C | 72°F22°C | 4 mph6 km/h from North | Clear | Clear |
| September 9 | 51°F10°C | 73°F23°C | 5 mph9 km/h from East | Mostly Clear | Mostly Clear |
| September 10 | 52°F11°C | 73°F23°C | 4 mph6 km/h from East | Partly Cloudy | Partly Cloudy |
| September 11 | 55°F13°C | 77°F25°C | 5 mph8 km/h from North | Mostly Clear | Mostly Clear |
No
Low of 64°F18°C, High of 78°F26°CWind: 5 mph8 km/h
Precipitation: 54% rain