Yes

you do need a jacket based on the weather in Saint John, NB, Canada 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
35°F2°C & Cloudy

Wind is 1 mph2 km/h from the Northwest, gusting to 2 mph4 km/h
December 29
9am36°F2°C1 mph2 km/h NorthwestCloudy
10am38°F3°C2 mph3 km/h WestCloudy
11am39°F4°C2 mph4 km/h WestCloudy
12pm41°F5°C2 mph4 km/h SouthwestMostly Cloudy
1pm41°F5°C3 mph4 km/h SouthwestMostly Cloudy
2pm41°F5°C3 mph5 km/h SouthwestMostly Cloudy
3pm39°F4°C3 mph5 km/h SouthwestMostly Cloudy
4pm37°F3°C3 mph5 km/h SouthwestMostly Cloudy
5pm37°F3°C3 mph5 km/h SouthMostly Cloudy
6pm36°F2°C3 mph5 km/h SouthCloudy
7pm36°F2°C3 mph6 km/h SouthCloudy
8pm37°F3°C4 mph6 km/h SouthCloudy
DateLowHighWindDayNight
December 2830°F-1°C41°F5°C2 mph4 km/h from SouthwestCloudyDrizzle
December 2939°F4°C49°F10°C10 mph17 km/h from SoutheastRainRain
December 3034°F1°C47°F8°C8 mph13 km/h from SouthwestMostly ClearMostly Cloudy
December 3133°F1°C42°F5°C12 mph19 km/h from EastDrizzleDrizzle
January 131°F-1°C40°F4°C13 mph21 km/h from WestDrizzleMostly Cloudy
January 223°F-5°C31°F-1°C15 mph24 km/h from WestWindyPartly Cloudy
January 320°F-7°C28°F-2°C8 mph13 km/h from WestPartly CloudyMostly Cloudy

Yes

Low of 39°F4°C, High of 49°F10°C
Wind: 10 mph17 km/h
Precipitation: 58% rain

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