No
you don't need a jacket based on the weather in Emmaus, PA 18049, USA 1 second ago
63°F17°C & Partly Cloudy
Wind is 2 mph3 km/h from the North, gusting to 5 mph8 km/h
| September 11 | ||||
| 11pm | 63°F17°C | 3 mph5 km/h Northeast | Mostly Cloudy | |
| September 12 | ||||
| 12am | 61°F16°C | 3 mph5 km/h Northeast | Partly Cloudy | |
| 1am | 59°F15°C | 3 mph5 km/h North | Mostly Clear | |
| 2am | 57°F14°C | 2 mph3 km/h North | Clear | |
| 3am | 57°F14°C | 2 mph4 km/h North | Clear | |
| 4am | 56°F13°C | 2 mph3 km/h North | Clear | |
| 5am | 55°F13°C | 3 mph4 km/h North | Mostly Clear | |
| 6am | 55°F13°C | 3 mph5 km/h North | Mostly Clear | |
| 7am | 55°F13°C | 3 mph5 km/h North | Mostly Clear | |
| 8am | 59°F15°C | 3 mph5 km/h North | Mostly Clear | |
| 9am | 64°F18°C | 4 mph7 km/h Northeast | Mostly Clear | |
| 10am | 69°F20°C | 5 mph8 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 57°F14°C | 78°F26°C | 2 mph4 km/h from North | Mostly Clear | Mostly Clear |
| September 12 | 55°F13°C | 78°F25°C | 3 mph5 km/h from Northeast | Mostly Clear | Partly Cloudy |
| September 13 | 58°F14°C | 80°F26°C | 4 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 14 | 58°F14°C | 81°F27°C | 4 mph6 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 15 | 60°F15°C | 81°F27°C | 4 mph7 km/h from Northeast | Mostly Clear | Partly Cloudy |
| September 16 | 60°F16°C | 80°F27°C | 2 mph3 km/h from East | Partly Cloudy | Partly Cloudy |
| September 17 | 59°F15°C | 78°F26°C | 4 mph7 km/h from East | Partly Cloudy | Mostly Cloudy |
Yes
Low of 55°F13°C, High of 78°F26°CWind: 3 mph5 km/h
Precipitation: None