Yes

you do need a jacket based on the weather in North York, ON, Canada 1 second ago

Why? Because it's not very warm out!
54°F12°C & Mostly Clear

Wind is 5 mph8 km/h from the SW, gusting to 11 mph18 km/h
October 19
10pm54°F12°C5 mph8 km/h SWClear
11pm52°F11°C4 mph7 km/h WClear
October 20
12am50°F10°C4 mph6 km/h WClear
1am49°F10°C4 mph6 km/h WClear
2am48°F9°C4 mph6 km/h WClear
3am47°F9°C4 mph6 km/h WMostly Clear
4am46°F8°C4 mph7 km/h SWMostly Cloudy
5am45°F7°C4 mph7 km/h SWPartly Cloudy
6am45°F7°C4 mph7 km/h SWMostly Clear
7am44°F7°C4 mph7 km/h SWMostly Clear
8am43°F6°C4 mph7 km/h SWClear
9am46°F8°C5 mph8 km/h SWMostly Clear
DateLowHighWindDayNight
October 1937°F3°C67°F19°C2 mph3 km/h from SClearMostly Clear
October 2043°F6°C71°F22°C8 mph13 km/h from SWClearMostly Clear
October 2152°F11°C75°F24°C7 mph11 km/h from SWMostly ClearClear
October 2251°F10°C73°F23°C6 mph10 km/h from SMostly ClearPartly Cloudy
October 2347°F9°C68°F20°C11 mph18 km/h from SWMostly CloudyRain
October 2440°F4°C55°F13°C9 mph14 km/h from NWMostly CloudyPartly Cloudy
October 2537°F3°C59°F15°C6 mph10 km/h from SWPartly CloudyPartly Cloudy

Yes

Low of 43°F6°C, High of 71°F22°C
Wind: 8 mph13 km/h
Precipitation: None

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