No
you don't need a jacket based on the weather in Lancaster, PA 17602, USA 1 second ago
67°F20°C & Cloudy
Wind is 9 mph15 km/h from the Northeast, gusting to 18 mph29 km/h
| September 17 | ||||
| 1pm | 69°F21°C | 11 mph17 km/h Northeast | Cloudy | |
| 2pm | 71°F21°C | 11 mph18 km/h Northeast | Mostly Cloudy | |
| 3pm | 70°F21°C | 10 mph16 km/h Northeast | Cloudy | |
| 4pm | 70°F21°C | 10 mph16 km/h Northeast | Cloudy | |
| 5pm | 68°F20°C | 8 mph12 km/h East | Rain | |
| 6pm | 67°F20°C | 6 mph9 km/h Northeast | Thunderstorms | |
| 7pm | 66°F19°C | 6 mph9 km/h Northeast | Cloudy | |
| 8pm | 65°F18°C | 5 mph7 km/h Northeast | Cloudy | |
| 9pm | 65°F18°C | 4 mph7 km/h Northeast | Cloudy | |
| 10pm | 64°F18°C | 4 mph7 km/h North | Mostly Cloudy | |
| 11pm | 64°F18°C | 3 mph6 km/h North | Cloudy | |
| September 18 | ||||
| 12am | 63°F17°C | 4 mph6 km/h North | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 59°F15°C | 71°F21°C | 8 mph12 km/h from Northeast | Rain | Thunderstorms |
| September 18 | 61°F16°C | 80°F26°C | 4 mph6 km/h from Northwest | Mostly Clear | Clear |
| September 19 | 58°F15°C | 81°F27°C | 6 mph9 km/h from Northwest | Clear | Mostly Clear |
| September 20 | 54°F12°C | 74°F23°C | 6 mph10 km/h from East | Mostly Clear | Partly Cloudy |
| September 21 | 54°F12°C | 73°F23°C | 7 mph11 km/h from Southeast | Mostly Cloudy | Mostly Clear |
| September 22 | 56°F14°C | 77°F25°C | 7 mph11 km/h from South | Partly Cloudy | Partly Cloudy |
| September 23 | 61°F16°C | 80°F26°C | 6 mph10 km/h from South | Mostly Cloudy | Mostly Cloudy |
No
Low of 61°F16°C, High of 80°F27°CWind: 4 mph6 km/h
Precipitation: None