Yes

you do need a jacket based on the weather in Boston PE21, UK 1 second ago

Why? Because too cold for just a hoodie, too warm for a parka!
41°F5°C & Clear

Wind is 4 mph6 km/h from the Northwest, gusting to 6 mph9 km/h
May 22
8pm41°F5°C4 mph7 km/h NorthwestMostly Clear
9pm40°F4°C5 mph8 km/h NorthwestMostly Clear
10pm39°F4°C5 mph8 km/h NorthwestPartly Cloudy
11pm39°F4°C5 mph8 km/h NorthwestMostly Clear
May 23
12am39°F4°C5 mph8 km/h NorthwestMostly Clear
1am40°F5°C5 mph8 km/h NorthwestPartly Cloudy
2am44°F7°C4 mph7 km/h WestPartly Cloudy
3am49°F9°C4 mph6 km/h NorthwestPartly Cloudy
4am52°F11°C4 mph7 km/h WestMostly Clear
5am55°F13°C4 mph7 km/h WestMostly Clear
6am58°F15°C5 mph8 km/h WestMostly Clear
7am60°F16°C7 mph11 km/h WestMostly Cloudy
DateLowHighWindDayNight
May 2239°F4°C64°F18°C5 mph8 km/h from WestPartly CloudyRain
May 2351°F11°C69°F21°C14 mph23 km/h from WestDrizzleRain
May 2452°F11°C64°F18°C20 mph32 km/h from WestWindyMostly Clear
May 2549°F9°C62°F17°C18 mph28 km/h from SouthwestWindyRain
May 2652°F11°C65°F18°C15 mph24 km/h from SouthwestWindyRain
May 2754°F12°C67°F19°C16 mph25 km/h from WestWindyPartly Cloudy
May 2852°F11°C67°F19°C11 mph18 km/h from WestMostly CloudyMostly Cloudy

Yes

Low of 51°F11°C, High of 69°F21°C
Wind: 14 mph23 km/h
Precipitation: 72% rain

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