Yes

you do need a jacket based on the weather in Mansfield (Storrs), Connecticut, United States 1 second ago

Why? Because it's quite chilly.
48°F9°C & Clear

Wind is 1 mph2 km/h from the S, gusting to 4 mph6 km/h
May 4
1am47°F8°C2 mph3 km/h NWMostly Cloudy
2am46°F8°C2 mph3 km/h NWMostly Cloudy
3am44°F7°C2 mph4 km/h NPartly Cloudy
4am43°F6°C2 mph4 km/h NEPartly Cloudy
5am43°F6°C3 mph5 km/h NEPartly Cloudy
6am42°F6°C3 mph5 km/h NEPartly Cloudy
7am45°F7°C2 mph4 km/h EPartly Cloudy
8am49°F10°C4 mph6 km/h EPartly Cloudy
9am53°F12°C4 mph7 km/h EMostly Cloudy
10am56°F13°C4 mph7 km/h EMostly Cloudy
11am60°F15°C5 mph8 km/h EPartly Cloudy
12pm62°F17°C6 mph9 km/h EMostly Cloudy
DateLowHighWindDayNight
May 442°F6°C65°F18°C5 mph9 km/h from EMostly CloudyCloudy
May 544°F7°C54°F12°C7 mph11 km/h from SERainDrizzle
May 648°F9°C71°F22°C5 mph8 km/h from SWDrizzlePartly Cloudy
May 749°F10°C75°F24°C5 mph8 km/h from NWClearPartly Cloudy
May 848°F9°C61°F16°C6 mph10 km/h from SEDrizzleDrizzle
May 948°F9°C65°F18°C6 mph10 km/h from NECloudyCloudy
May 1045°F7°C64°F18°C7 mph12 km/h from ECloudyCloudy

Yes

Low of 44°F7°C, High of 54°F12°C
Wind: 7 mph11 km/h
Precipitation: 57% rain

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