Yes

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

Why? Because too cold for just a hoodie, too warm for a parka!
33°F0°C & Cloudy

Wind is 4 mph6 km/h from the North, gusting to 8 mph13 km/h
January 11
12am33°F0°C4 mph7 km/h NorthMostly Clear
1am32°F0°C4 mph6 km/h NorthPartly Cloudy
2am32°F-0°C3 mph5 km/h NorthCloudy
3am32°F-0°C4 mph6 km/h NortheastCloudy
4am32°F-0°C4 mph6 km/h NortheastCloudy
5am31°F-0°C4 mph6 km/h EastCloudy
6am31°F-0°C4 mph7 km/h EastCloudy
7am31°F-0°C4 mph7 km/h SoutheastCloudy
8am32°F0°C5 mph8 km/h SoutheastCloudy
9am33°F1°C6 mph9 km/h SoutheastCloudy
10am34°F1°C6 mph10 km/h SoutheastCloudy
11am34°F1°C7 mph11 km/h SoutheastCloudy
DateLowHighWindDayNight
January 1031°F-1°C35°F2°C7 mph11 km/h from EastCloudyCloudy
January 1130°F-1°C34°F1°C12 mph19 km/h from NorthCloudyCloudy
January 1230°F-1°C34°F1°C5 mph8 km/h from NorthwestCloudyCloudy
January 1328°F-2°C33°F0°C5 mph8 km/h from NorthwestCloudyMostly Cloudy
January 1426°F-3°C30°F-1°C13 mph21 km/h from NorthCloudyMostly Cloudy
January 1525°F-4°C28°F-2°C9 mph14 km/h from NorthwestCloudyCloudy
January 1627°F-3°C33°F1°C8 mph14 km/h from WestMostly CloudyMostly Cloudy

Yes

Low of 30°F-1°C, High of 34°F1°C
Wind: 12 mph19 km/h
Precipitation: None

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