Yes

you do need a jacket based on the weather in Ypsilanti, MI 48197, USA 1 second ago

Why? Because there's a refreshing nip in the air.
36°F2°C & Clear

Wind is 4 mph6 km/h from the E, gusting to 9 mph15 km/h
April 26
2am35°F1°C5 mph9 km/h EClear
3am33°F1°C6 mph9 km/h EClear
4am32°F0°C6 mph10 km/h EClear
5am33°F0°C7 mph11 km/h EClear
6am33°F1°C7 mph11 km/h EClear
7am34°F1°C6 mph10 km/h EClear
8am37°F3°C7 mph11 km/h EClear
9am43°F6°C9 mph15 km/h EMostly Clear
10am48°F9°C10 mph16 km/h EClear
11am53°F12°C10 mph17 km/h EClear
12pm57°F14°C12 mph19 km/h SEMostly Clear
1pm60°F16°C13 mph20 km/h SEMostly Clear
DateLowHighWindDayNight
April 2632°F0°C64°F18°C11 mph18 km/h from SEPartly CloudyRain
April 2753°F12°C76°F25°C16 mph26 km/h from SWRainMostly Cloudy
April 2861°F16°C78°F26°C11 mph18 km/h from SWMostly CloudyPartly Cloudy
April 2960°F15°C76°F25°C13 mph21 km/h from SWDrizzleDrizzle
April 3058°F14°C75°F24°C8 mph14 km/h from WMostly CloudyPartly Cloudy
May 152°F11°C75°F24°C10 mph15 km/h from SWPartly CloudyPartly Cloudy
May 252°F11°C71°F22°C9 mph15 km/h from SDrizzleDrizzle

Yes

Low of 54°F12°C, High of 76°F25°C
Wind: 16 mph26 km/h
Precipitation: 66% rain

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