Yes
you do need a jacket based on the weather in Ann Arbor, MI, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
55°F13°C & Clear
Wind is 3 mph5 km/h from the Northwest, gusting to 5 mph8 km/h
| September 11 | ||||
| 3am | 55°F13°C | 3 mph6 km/h Northwest | Clear | |
| 4am | 53°F12°C | 2 mph3 km/h Northeast | Clear | |
| 5am | 52°F11°C | 2 mph3 km/h North | Clear | |
| 6am | 52°F11°C | 3 mph4 km/h Northwest | Clear | |
| 7am | 51°F11°C | 4 mph6 km/h North | Clear | |
| 8am | 53°F12°C | 4 mph7 km/h North | Clear | |
| 9am | 59°F15°C | 3 mph4 km/h North | Clear | |
| 10am | 66°F19°C | 3 mph5 km/h Northeast | Clear | |
| 11am | 71°F21°C | 3 mph5 km/h East | Clear | |
| 12pm | 74°F23°C | 3 mph5 km/h East | Clear | |
| 1pm | 76°F24°C | 3 mph5 km/h East | Clear | |
| 2pm | 78°F25°C | 3 mph5 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 51°F11°C | 79°F26°C | 3 mph5 km/h from Northeast | Clear | Clear |
| September 12 | 53°F12°C | 80°F27°C | 3 mph4 km/h from South | Mostly Clear | Partly Cloudy |
| September 13 | 57°F14°C | 80°F27°C | 7 mph11 km/h from Southwest | Mostly Cloudy | Mostly Clear |
| September 14 | 61°F16°C | 83°F28°C | 5 mph7 km/h from Northeast | Mostly Clear | Clear |
| September 15 | 58°F14°C | 81°F27°C | 6 mph9 km/h from East | Mostly Clear | Mostly Clear |
| September 16 | 59°F15°C | 80°F27°C | 5 mph9 km/h from East | Partly Cloudy | Mostly Clear |
| September 17 | 57°F14°C | 81°F27°C | 5 mph8 km/h from Southeast | Mostly Clear | Partly Cloudy |
Yes
Low of 54°F12°C, High of 80°F27°CWind: 3 mph4 km/h
Precipitation: None