Yes
you do need a jacket based on the weather in Ann Arbor, MI, USA 1 second ago
Why? Because it's not very warm out!
54°F12°C & Clear
Wind is 4 mph7 km/h from the Northwest, gusting to 7 mph11 km/h
| September 18 | ||||
| 5am | 54°F12°C | 4 mph7 km/h Northwest | Clear | |
| 6am | 54°F12°C | 5 mph8 km/h Northwest | Clear | |
| 7am | 54°F12°C | 5 mph8 km/h Northwest | Mostly Clear | |
| 8am | 56°F13°C | 5 mph8 km/h Northwest | Clear | |
| 9am | 62°F17°C | 5 mph9 km/h Northwest | Clear | |
| 10am | 69°F21°C | 5 mph9 km/h Northwest | Clear | |
| 11am | 75°F24°C | 4 mph7 km/h Northwest | Clear | |
| 12pm | 79°F26°C | 3 mph5 km/h Northwest | Clear | |
| 1pm | 81°F27°C | 3 mph5 km/h Northwest | Clear | |
| 2pm | 83°F28°C | 4 mph6 km/h Northwest | Mostly Clear | |
| 3pm | 84°F29°C | 4 mph7 km/h Northwest | Mostly Clear | |
| 4pm | 84°F29°C | 5 mph8 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 54°F12°C | 84°F29°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 19 | 61°F16°C | 80°F27°C | 7 mph11 km/h from East | Mostly Clear | Mostly Clear |
| September 20 | 57°F14°C | 78°F25°C | 10 mph16 km/h from East | Mostly Cloudy | Mostly Cloudy |
| September 21 | 59°F15°C | 82°F28°C | 8 mph13 km/h from South | Mostly Cloudy | Rain |
| September 22 | 63°F17°C | 75°F24°C | 8 mph13 km/h from Southwest | Rain | Drizzle |
| September 23 | 60°F15°C | 77°F25°C | 5 mph8 km/h from Southwest | Drizzle | Drizzle |
| September 24 | 61°F16°C | 74°F23°C | 6 mph10 km/h from Northeast | Drizzle | Rain |
No
Low of 61°F16°C, High of 80°F27°CWind: 7 mph11 km/h
Precipitation: 44% rain