No
you don't need a jacket based on the weather in Johnstown, PA, USA 1 second ago
70°F21°C & Clear
Wind is 5 mph8 km/h from the East, gusting to 10 mph16 km/h
| August 31 | ||||
| 7pm | 69°F20°C | 5 mph8 km/h East | Clear | |
| 8pm | 64°F18°C | 4 mph7 km/h East | Clear | |
| 9pm | 61°F16°C | 4 mph6 km/h East | Clear | |
| 10pm | 58°F14°C | 3 mph5 km/h East | Clear | |
| 11pm | 56°F13°C | 3 mph4 km/h East | Clear | |
| September 1 | ||||
| 12am | 54°F12°C | 2 mph4 km/h East | Clear | |
| 1am | 52°F11°C | 2 mph3 km/h East | Clear | |
| 2am | 50°F10°C | 2 mph3 km/h East | Clear | |
| 3am | 49°F9°C | 3 mph4 km/h East | Clear | |
| 4am | 48°F9°C | 2 mph4 km/h East | Clear | |
| 5am | 48°F9°C | 3 mph4 km/h East | Clear | |
| 6am | 47°F9°C | 3 mph4 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 31 | 42°F6°C | 74°F23°C | 3 mph5 km/h from Northeast | Mostly Clear | Clear |
| September 1 | 47°F8°C | 72°F22°C | 5 mph7 km/h from East | Partly Cloudy | Partly Cloudy |
| September 2 | 51°F10°C | 71°F22°C | 3 mph4 km/h from Southeast | Partly Cloudy | Mostly Clear |
| September 3 | 52°F11°C | 74°F23°C | 5 mph7 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 4 | 59°F15°C | 71°F22°C | 8 mph13 km/h from Southwest | Rain | Rain |
| September 5 | 54°F12°C | 73°F23°C | 8 mph13 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 6 | 55°F13°C | 68°F20°C | 8 mph13 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 47°F9°C, High of 73°F23°CWind: 5 mph7 km/h
Precipitation: None