Yes
you do need a jacket based on the weather in Zionsville, IN, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
59°F15°C & Clear
Wind is 6 mph10 km/h from the Northwest, gusting to 13 mph21 km/h
| September 6 | ||||
| 10am | 60°F15°C | 7 mph11 km/h Northwest | Clear | |
| 11am | 63°F17°C | 8 mph13 km/h Northwest | Clear | |
| 12pm | 65°F19°C | 9 mph15 km/h West | Clear | |
| 1pm | 67°F19°C | 12 mph20 km/h West | Mostly Clear | |
| 2pm | 68°F20°C | 12 mph20 km/h West | Partly Cloudy | |
| 3pm | 69°F21°C | 12 mph20 km/h West | Partly Cloudy | |
| 4pm | 69°F21°C | 12 mph19 km/h West | Mostly Clear | |
| 5pm | 69°F21°C | 12 mph19 km/h West | Partly Cloudy | |
| 6pm | 68°F20°C | 11 mph18 km/h West | Partly Cloudy | |
| 7pm | 67°F19°C | 10 mph15 km/h West | Mostly Clear | |
| 8pm | 63°F17°C | 7 mph11 km/h Northwest | Mostly Clear | |
| 9pm | 59°F15°C | 5 mph8 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 6 | 53°F12°C | 69°F21°C | 9 mph14 km/h from West | Mostly Clear | Mostly Clear |
| September 7 | 47°F9°C | 69°F21°C | 7 mph11 km/h from Northwest | Mostly Clear | Clear |
| September 8 | 45°F7°C | 72°F22°C | 4 mph7 km/h from Southeast | Clear | Mostly Clear |
| September 9 | 49°F10°C | 76°F25°C | 5 mph8 km/h from South | Mostly Clear | Partly Cloudy |
| September 10 | 57°F14°C | 80°F27°C | 4 mph6 km/h from West | Mostly Clear | Clear |
| September 11 | 58°F15°C | 81°F27°C | 4 mph7 km/h from North | Mostly Clear | Mostly Clear |
| September 12 | 59°F15°C | 78°F26°C | 7 mph12 km/h from East | Mostly Clear | Mostly Clear |
Yes
Low of 47°F9°C, High of 69°F21°CWind: 7 mph11 km/h
Precipitation: None