No
you don't need a jacket based on the weather in Johnstown, PA, USA 1 second ago
71°F22°C & Mostly Cloudy
Wind is 2 mph4 km/h from the South, gusting to 7 mph11 km/h
| August 9 | ||||
| 11am | 74°F23°C | 3 mph5 km/h South | Clear | |
| 12pm | 77°F25°C | 3 mph5 km/h Southeast | Clear | |
| 1pm | 79°F26°C | 5 mph8 km/h Southeast | Clear | |
| 2pm | 81°F27°C | 5 mph8 km/h Southeast | Clear | |
| 3pm | 82°F28°C | 5 mph7 km/h Southeast | Clear | |
| 4pm | 82°F28°C | 4 mph7 km/h Southeast | Clear | |
| 5pm | 82°F28°C | 5 mph7 km/h Southeast | Clear | |
| 6pm | 81°F27°C | 4 mph7 km/h Southeast | Clear | |
| 7pm | 79°F26°C | 4 mph7 km/h Southeast | Clear | |
| 8pm | 74°F24°C | 4 mph7 km/h Southeast | Clear | |
| 9pm | 71°F22°C | 4 mph7 km/h Southeast | Clear | |
| 10pm | 68°F20°C | 4 mph6 km/h Southeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 9 | 55°F13°C | 82°F28°C | 4 mph6 km/h from Southeast | Clear | Clear |
| August 10 | 57°F14°C | 83°F29°C | 5 mph7 km/h from Southeast | Clear | Clear |
| August 11 | 58°F14°C | 85°F30°C | 3 mph5 km/h from South | Mostly Clear | Clear |
| August 12 | 63°F17°C | 86°F30°C | 3 mph5 km/h from Southwest | Mostly Clear | Mostly Clear |
| August 13 | 67°F20°C | 83°F28°C | 6 mph10 km/h from West | Drizzle | Partly Cloudy |
| August 14 | 66°F19°C | 83°F28°C | 4 mph6 km/h from Northwest | Mostly Clear | Partly Cloudy |
| August 15 | 66°F19°C | 82°F28°C | 4 mph6 km/h from South | Partly Cloudy | Partly Cloudy |
Yes
Low of 57°F14°C, High of 83°F29°CWind: 5 mph7 km/h
Precipitation: None