Yes

you do need a jacket based on the weather in Detroit, MI 48210, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
58°F15°C & Mostly Clear

Wind is 5 mph8 km/h from the Northwest, gusting to 11 mph18 km/h
August 26
10am60°F16°C6 mph10 km/h NorthwestClear
11am63°F17°C8 mph13 km/h NorthwestMostly Clear
12pm65°F18°C9 mph15 km/h NorthwestMostly Clear
1pm67°F19°C10 mph16 km/h NorthwestPartly Cloudy
2pm68°F20°C9 mph15 km/h NorthwestPartly Cloudy
3pm69°F20°C9 mph14 km/h NorthwestPartly Cloudy
4pm69°F21°C9 mph14 km/h NorthwestPartly Cloudy
5pm70°F21°C9 mph14 km/h NorthwestMostly Cloudy
6pm68°F20°C8 mph13 km/h NorthwestMostly Cloudy
7pm67°F20°C7 mph12 km/h NorthwestPartly Cloudy
8pm65°F19°C6 mph9 km/h NorthwestPartly Cloudy
9pm63°F17°C5 mph8 km/h NorthwestMostly Clear
DateLowHighWindDayNight
August 2651°F11°C70°F21°C8 mph12 km/h from NorthwestMostly ClearMostly Clear
August 2752°F11°C74°F23°C6 mph10 km/h from WestMostly ClearPartly Cloudy
August 2857°F14°C70°F21°C9 mph15 km/h from WestRainDrizzle
August 2952°F11°C68°F20°C7 mph10 km/h from NorthMostly ClearMostly Clear
August 3051°F11°C71°F22°C4 mph7 km/h from NorthwestMostly ClearMostly Clear
August 3153°F12°C74°F23°C4 mph7 km/h from NortheastClearClear
September 156°F13°C76°F24°C5 mph7 km/h from NortheastClearClear

Yes

Low of 53°F12°C, High of 73°F23°C
Wind: 6 mph10 km/h
Precipitation: None

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