Yes

you do need a jacket based on the weather in Shelton, CT 06484, USA 1 second ago

Why? Because it's cold. simple as that.
37°F3°C & Cloudy

Wind is 7 mph11 km/h from the NE, gusting to 18 mph29 km/h
April 25
5am37°F3°C7 mph11 km/h NEMostly Clear
6am35°F2°C6 mph10 km/h NEMostly Clear
7am36°F2°C7 mph11 km/h NEMostly Clear
8am37°F3°C8 mph12 km/h NEMostly Clear
9am40°F5°C7 mph11 km/h NEMostly Clear
10am44°F7°C5 mph9 km/h NEClear
11am48°F9°C4 mph6 km/h NEClear
12pm52°F11°C3 mph5 km/h NEClear
1pm54°F12°C3 mph4 km/h EClear
2pm56°F13°C3 mph4 km/h SClear
3pm56°F14°C5 mph8 km/h SClear
4pm56°F13°C6 mph10 km/h SClear
DateLowHighWindDayNight
April 2535°F2°C56°F14°C5 mph8 km/h from EClearClear
April 2634°F1°C59°F15°C5 mph8 km/h from SEClearClear
April 2737°F3°C61°F16°C7 mph12 km/h from SPartly CloudyDrizzle
April 2845°F7°C66°F19°C6 mph10 km/h from SDrizzleMostly Cloudy
April 2951°F10°C76°F24°C4 mph6 km/h from SEMostly CloudyMostly Cloudy
April 3050°F10°C69°F20°C7 mph11 km/h from SEMostly CloudyMostly Cloudy
May 155°F13°C79°F26°C5 mph8 km/h from WMostly ClearMostly Clear

Yes

Low of 34°F1°C, High of 60°F16°C
Wind: 5 mph8 km/h
Precipitation: None

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