Yes
you do need a jacket based on the weather in Ann Arbor, MI, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
56°F13°C & Clear
Wind is 2 mph3 km/h from the East, gusting to 4 mph7 km/h
| September 14 | ||||
| 4am | 55°F13°C | 2 mph3 km/h Northeast | Clear | |
| 5am | 55°F13°C | 2 mph3 km/h Northeast | Clear | |
| 6am | 55°F13°C | 2 mph4 km/h Northeast | Clear | |
| 7am | 54°F12°C | 3 mph5 km/h Northeast | Clear | |
| 8am | 55°F13°C | 3 mph5 km/h Northeast | Clear | |
| 9am | 61°F16°C | 3 mph4 km/h Northeast | Clear | |
| 10am | 68°F20°C | 3 mph5 km/h East | Clear | |
| 11am | 73°F23°C | 4 mph7 km/h East | Clear | |
| 12pm | 76°F24°C | 5 mph9 km/h East | Clear | |
| 1pm | 78°F26°C | 6 mph10 km/h East | Clear | |
| 2pm | 79°F26°C | 6 mph10 km/h East | Clear | |
| 3pm | 80°F27°C | 6 mph10 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 14 | 54°F12°C | 81°F27°C | 5 mph8 km/h from East | Clear | Clear |
| September 15 | 57°F14°C | 81°F27°C | 6 mph10 km/h from East | Mostly Clear | Mostly Clear |
| September 16 | 57°F14°C | 82°F28°C | 6 mph10 km/h from East | Mostly Clear | Mostly Clear |
| September 17 | 57°F14°C | 82°F28°C | 4 mph6 km/h from Southeast | Mostly Clear | Mostly Clear |
| September 18 | 58°F14°C | 83°F28°C | 4 mph6 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 19 | 58°F15°C | 81°F27°C | 5 mph8 km/h from South | Partly Cloudy | Partly Cloudy |
| September 20 | 58°F14°C | 74°F23°C | 10 mph16 km/h from East | Partly Cloudy | Drizzle |
Yes
Low of 57°F14°C, High of 82°F28°CWind: 6 mph10 km/h
Precipitation: None