Yes

you do need a jacket based on the weather in New Brunswick, Canada 1 second ago

Why? Because rain: where every drop seems to aim directly at your glasses and it's quite chilly!
42°F6°C & Rain

Wind is 8 mph13 km/h from the East, gusting to 17 mph27 km/h
April 26
12pm43°F6°C8 mph13 km/h EastRain
1pm44°F7°C9 mph15 km/h EastRain
2pm44°F7°C10 mph16 km/h EastRain
3pm45°F7°C10 mph16 km/h EastRain
4pm45°F7°C11 mph18 km/h NortheastRain
5pm45°F7°C11 mph18 km/h NortheastRain
6pm46°F8°C9 mph15 km/h NortheastRain
7pm46°F8°C7 mph11 km/h NortheastRain
8pm45°F7°C5 mph9 km/h NortheastDrizzle
9pm45°F7°C4 mph7 km/h NortheastHaze
10pm44°F7°C4 mph6 km/h NorthHaze
11pm44°F6°C4 mph6 km/h NorthHaze
DateLowHighWindDayNight
April 2538°F3°C46°F8°C9 mph15 km/h from EastRainRain
April 2639°F4°C44°F6°C10 mph15 km/h from NortheastRainDrizzle
April 2741°F5°C62°F16°C11 mph18 km/h from NorthPartly CloudyMostly Clear
April 2835°F2°C66°F19°C8 mph13 km/h from SouthMostly CloudyMostly Cloudy
April 2939°F4°C52°F11°C16 mph25 km/h from WestWindyPartly Cloudy
April 3034°F1°C53°F12°C10 mph17 km/h from NorthwestPartly CloudyMostly Cloudy
May 136°F2°C49°F10°C5 mph9 km/h from SoutheastRainDrizzle

Yes

Low of 39°F4°C, High of 44°F7°C
Wind: 10 mph15 km/h
Precipitation: 78% rain

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