Yes

you do need a jacket based on the weather in Halifax Regional Municipality, NS, Canada 1 second ago

Why? Because it's not very warm out!
51°F10°C & Cloudy

Wind is 6 mph9 km/h from the Northeast, gusting to 14 mph22 km/h
October 29
9pm50°F10°C6 mph9 km/h NortheastCloudy
10pm50°F10°C6 mph10 km/h NortheastCloudy
11pm49°F9°C7 mph11 km/h NortheastCloudy
October 30
12am48°F9°C7 mph11 km/h NortheastCloudy
1am47°F9°C7 mph11 km/h NortheastCloudy
2am47°F8°C6 mph10 km/h NortheastCloudy
3am46°F8°C6 mph10 km/h NortheastCloudy
4am46°F8°C6 mph9 km/h NortheastCloudy
5am46°F8°C6 mph9 km/h NortheastCloudy
6am45°F7°C6 mph9 km/h NortheastCloudy
7am45°F7°C6 mph9 km/h NortheastCloudy
8am45°F7°C5 mph9 km/h NortheastMostly Cloudy
DateLowHighWindDayNight
October 2943°F6°C53°F12°C7 mph11 km/h from NortheastCloudyCloudy
October 3045°F7°C57°F14°C7 mph11 km/h from EastMostly CloudyRain
October 3152°F11°C63°F17°C18 mph29 km/h from SoutheastHeavy RainWindy
November 146°F8°C52°F11°C18 mph30 km/h from WestWindyPartly Cloudy
November 242°F5°C49°F10°C8 mph13 km/h from WestMostly CloudyPartly Cloudy
November 339°F4°C51°F10°C7 mph12 km/h from SouthwestPartly CloudyDrizzle
November 442°F5°C52°F11°C12 mph19 km/h from WestDrizzlePartly Cloudy

Yes

Low of 45°F7°C, High of 57°F14°C
Wind: 7 mph11 km/h
Precipitation: None

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