Yes

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

Why? Because it's cold. simple as that.
33°F1°C & Clear

Wind is 4 mph7 km/h from the NW, gusting to 13 mph21 km/h
March 29
2am33°F0°C4 mph7 km/h NWClear
3am31°F-1°C4 mph6 km/h NWClear
4am29°F-2°C3 mph6 km/h NWClear
5am28°F-2°C3 mph5 km/h WClear
6am27°F-3°C3 mph5 km/h WClear
7am27°F-3°C4 mph7 km/h WClear
8am28°F-2°C5 mph7 km/h WClear
9am32°F-0°C5 mph9 km/h WClear
10am36°F2°C6 mph10 km/h WClear
11am40°F4°C7 mph12 km/h WClear
12pm43°F6°C8 mph14 km/h WClear
1pm45°F7°C9 mph14 km/h NWMostly Clear
DateLowHighWindDayNight
March 2927°F-3°C52°F11°C7 mph11 km/h from WClearMostly Cloudy
March 3036°F2°C51°F11°C6 mph10 km/h from ERainCloudy
March 3135°F1°C49°F9°C5 mph7 km/h from ECloudyRain
April 137°F3°C51°F10°C10 mph16 km/h from NERainRain
April 238°F4°C50°F10°C7 mph11 km/h from NRainDrizzle
April 334°F1°C43°F6°C12 mph20 km/h from NWDrizzlePartly Cloudy
April 431°F-1°C48°F9°C13 mph21 km/h from NWMostly CloudyClear

Yes

Low of 36°F2°C, High of 51°F11°C
Wind: 6 mph10 km/h
Precipitation: 67% rain

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