Yes

you do need a jacket based on the weather in Mississauga, ON, Canada 3 minutes ago

Why? Because the cold's there, but it's just a reminder, not an invasion and it's on the windy side!
38°F3°C & Mostly Clear

Wind is 8 mph13 km/h from the Northwest, gusting to 21 mph34 km/h
November 8
12pm38°F3°C9 mph14 km/h NorthwestMostly Clear
1pm38°F3°C8 mph12 km/h NorthwestMostly Clear
2pm40°F4°C8 mph12 km/h NorthwestMostly Clear
3pm41°F5°C7 mph12 km/h NorthwestMostly Clear
4pm43°F6°C6 mph10 km/h NorthwestMostly Clear
5pm44°F6°C6 mph10 km/h NorthwestPartly Cloudy
6pm44°F7°C5 mph8 km/h NorthwestMostly Cloudy
7pm45°F7°C5 mph8 km/h NorthwestPartly Cloudy
8pm45°F7°C4 mph7 km/h NorthwestMostly Cloudy
9pm44°F7°C4 mph7 km/h NorthMostly Cloudy
10pm43°F6°C4 mph7 km/h NortheastCloudy
11pm41°F5°C6 mph9 km/h NortheastCloudy
DateLowHighWindDayNight
November 837°F3°C49°F10°C6 mph9 km/h from NorthwestPartly CloudySnow
November 929°F-2°C37°F3°C12 mph20 km/h from NorthSnowMostly Cloudy
November 1025°F-4°C34°F1°C9 mph15 km/h from NorthwestPartly CloudyPartly Cloudy
November 1125°F-4°C38°F4°C10 mph17 km/h from WestMostly CloudySnow
November 1234°F1°C43°F6°C11 mph18 km/h from SouthwestDrizzleMostly Cloudy
November 1336°F2°C44°F7°C13 mph20 km/h from WestMostly CloudyPartly Cloudy
November 1432°F-0°C44°F7°C7 mph11 km/h from NorthwestPartly CloudyPartly Cloudy

Yes

Low of 28°F-2°C, High of 37°F3°C
Wind: 12 mph20 km/h
Precipitation: 84% snow

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