Yes

you do need a jacket based on the weather in Devens (Devens), Massachusetts, United States 1 second ago

Why? Because time to get cozy, it's freezing out there!
20°F-6°C & Mostly Clear

Wind is 6 mph10 km/h from the Northwest, gusting to 16 mph26 km/h
January 12
5am20°F-6°C6 mph10 km/h NorthwestClear
6am20°F-7°C6 mph10 km/h NorthwestClear
7am20°F-7°C6 mph9 km/h NorthwestClear
8am21°F-6°C5 mph8 km/h NorthwestClear
9am25°F-4°C5 mph9 km/h NorthwestClear
10am28°F-2°C7 mph11 km/h NorthwestClear
11am30°F-1°C7 mph11 km/h NorthwestClear
12pm33°F0°C7 mph11 km/h NorthwestClear
1pm34°F1°C6 mph9 km/h NorthwestClear
2pm35°F2°C5 mph8 km/h NorthwestClear
3pm35°F2°C5 mph7 km/h NorthwestClear
4pm33°F0°C3 mph5 km/h WestClear
DateLowHighWindDayNight
January 1220°F-7°C35°F2°C5 mph8 km/h from NorthwestClearMostly Cloudy
January 1322°F-6°C39°F4°C4 mph7 km/h from SouthwestPartly CloudyMostly Clear
January 1419°F-7°C30°F-1°C12 mph19 km/h from WestClearPartly Cloudy
January 1516°F-9°C28°F-2°C12 mph19 km/h from NorthwestMostly ClearClear
January 1612°F-11°C29°F-2°C4 mph7 km/h from WestMostly ClearPartly Cloudy
January 1716°F-9°C35°F1°C5 mph7 km/h from SouthwestMostly ClearMostly Cloudy
January 1826°F-3°C43°F6°C8 mph13 km/h from SouthCloudyDrizzle

Yes

Low of 22°F-6°C, High of 38°F4°C
Wind: 4 mph7 km/h
Precipitation: None

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