Yes

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

Why? Because it's quite chilly.
36°F2°C & Mostly Cloudy

Wind is 6 mph9 km/h from the N, gusting to 14 mph22 km/h
April 18
6am37°F3°C6 mph9 km/h NMostly Cloudy
7am38°F4°C7 mph11 km/h NMostly Cloudy
8am40°F5°C8 mph14 km/h NMostly Cloudy
9am42°F5°C9 mph14 km/h NCloudy
10am43°F6°C9 mph14 km/h NMostly Cloudy
11am45°F7°C9 mph15 km/h NMostly Cloudy
12pm46°F8°C9 mph15 km/h NMostly Cloudy
1pm47°F8°C9 mph15 km/h NMostly Cloudy
2pm47°F8°C9 mph15 km/h NMostly Cloudy
3pm48°F9°C10 mph16 km/h NEPartly Cloudy
4pm47°F8°C10 mph16 km/h NEMostly Clear
5pm46°F8°C9 mph15 km/h NEMostly Clear
DateLowHighWindDayNight
April 1733°F1°C48°F9°C9 mph14 km/h from NMostly CloudyMostly Clear
April 1828°F-2°C56°F13°C5 mph8 km/h from NEPartly CloudyMostly Cloudy
April 1937°F3°C48°F9°C10 mph17 km/h from SRainRain
April 2037°F3°C56°F13°C10 mph16 km/h from WPartly CloudyPartly Cloudy
April 2137°F3°C56°F13°C9 mph14 km/h from WPartly CloudyMostly Clear
April 2234°F1°C59°F15°C7 mph12 km/h from SWPartly CloudyMostly Cloudy
April 2337°F3°C52°F11°C9 mph15 km/h from SCloudyMostly Cloudy

Yes

Low of 28°F-2°C, High of 55°F13°C
Wind: 5 mph8 km/h
Precipitation: None

Support This Page