Yes
you do need a jacket based on the weather in Ann Arbor, MI, USA 1 minute ago
Why? Because it's not very warm out!
52°F11°C & Clear
Wind is 4 mph6 km/h from the North, gusting to 6 mph9 km/h
| September 12 | ||||
| 5am | 52°F11°C | 4 mph6 km/h North | Clear | |
| 6am | 51°F11°C | 3 mph5 km/h North | Clear | |
| 7am | 51°F10°C | 3 mph5 km/h North | Clear | |
| 8am | 52°F11°C | 3 mph5 km/h North | Clear | |
| 9am | 58°F15°C | 1 mph2 km/h Northeast | Clear | |
| 10am | 65°F18°C | 2 mph4 km/h East | Clear | |
| 11am | 70°F21°C | 2 mph3 km/h East | Clear | |
| 12pm | 74°F23°C | 1 mph2 km/h Southeast | Clear | |
| 1pm | 77°F25°C | 1 mph2 km/h East | Mostly Clear | |
| 2pm | 78°F26°C | 1 mph2 km/h East | Mostly Clear | |
| 3pm | 79°F26°C | 2 mph3 km/h Southeast | Mostly Clear | |
| 4pm | 80°F27°C | 2 mph3 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 12 | 51°F10°C | 80°F27°C | 2 mph3 km/h from East | Mostly Clear | Partly Cloudy |
| September 13 | 55°F13°C | 78°F26°C | 5 mph8 km/h from West | Mostly Cloudy | Mostly Clear |
| September 14 | 57°F14°C | 82°F28°C | 5 mph8 km/h from Southeast | Mostly Clear | Clear |
| September 15 | 59°F15°C | 83°F28°C | 7 mph11 km/h from East | Mostly Clear | Clear |
| September 16 | 56°F14°C | 83°F28°C | 6 mph10 km/h from East | Mostly Clear | Mostly Clear |
| September 17 | 59°F15°C | 82°F28°C | 6 mph9 km/h from East | Mostly Clear | Partly Cloudy |
| September 18 | 60°F16°C | 81°F27°C | 4 mph7 km/h from Southeast | Partly Cloudy | Partly Cloudy |
Yes
Low of 55°F13°C, High of 78°F26°CWind: 5 mph8 km/h
Precipitation: 15% rain