Yes

you do need a jacket based on the weather in Wilmington, DE, USA 1 second ago

Why? Because there's a refreshing nip in the air.
39°F4°C & Mostly Clear

Wind is 3 mph5 km/h from the NE, gusting to 5 mph8 km/h
April 26
4am39°F4°C4 mph6 km/h NEClear
5am38°F3°C4 mph7 km/h NEClear
6am38°F3°C4 mph7 km/h NEClear
7am40°F4°C5 mph8 km/h NEClear
8am43°F6°C5 mph9 km/h NEClear
9am48°F9°C6 mph10 km/h EClear
10am52°F11°C6 mph10 km/h EClear
11am56°F13°C6 mph10 km/h EClear
12pm59°F15°C6 mph10 km/h EClear
1pm61°F16°C6 mph10 km/h SEClear
2pm63°F17°C6 mph10 km/h SEClear
3pm64°F18°C6 mph10 km/h SEClear
DateLowHighWindDayNight
April 2638°F3°C65°F18°C7 mph11 km/h from SEClearMostly Clear
April 2739°F4°C61°F16°C9 mph14 km/h from SMostly CloudyMostly Cloudy
April 2848°F9°C79°F26°C6 mph10 km/h from SWPartly CloudyPartly Cloudy
April 2960°F15°C87°F30°C4 mph6 km/h from WPartly CloudyMostly Clear
April 3059°F15°C83°F29°C7 mph11 km/h from SMostly CloudyMostly Cloudy
May 159°F15°C81°F27°C5 mph7 km/h from WMostly ClearMostly Cloudy
May 257°F14°C81°F27°C6 mph10 km/h from SWMostly ClearPartly Cloudy

Yes

Low of 39°F4°C, High of 62°F17°C
Wind: 9 mph14 km/h
Precipitation: 15% rain

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