Yes

you do need a jacket based on the weather in Markham (Buttonville), Ontario, Canada 1 second ago

Why? Because too cold for just a hoodie, too warm for a parka!
41°F5°C & Cloudy

Wind is 7 mph11 km/h from the Southwest, gusting to 16 mph25 km/h
November 3
11am42°F5°C8 mph13 km/h SouthwestCloudy
12pm43°F6°C9 mph14 km/h SouthwestCloudy
1pm44°F7°C10 mph16 km/h SouthwestCloudy
2pm46°F8°C12 mph19 km/h SouthwestCloudy
3pm46°F8°C14 mph22 km/h SouthwestCloudy
4pm46°F8°C15 mph23 km/h SouthwestDrizzle
5pm45°F7°C15 mph24 km/h SouthwestDrizzle
6pm45°F7°C15 mph24 km/h SouthwestWindy
7pm47°F8°C16 mph25 km/h SouthwestWindy
8pm49°F9°C14 mph23 km/h WestPartly Cloudy
9pm50°F10°C15 mph23 km/h WestMostly Clear
10pm48°F9°C14 mph22 km/h WestMostly Clear
DateLowHighWindDayNight
November 339°F4°C50°F10°C14 mph22 km/h from SouthwestDrizzleMostly Clear
November 439°F4°C53°F12°C11 mph17 km/h from WestMostly ClearCloudy
November 540°F4°C53°F12°C11 mph18 km/h from WestDrizzleDrizzle
November 637°F3°C45°F7°C6 mph10 km/h from NorthwestMostly CloudyMostly Cloudy
November 737°F3°C53°F12°C9 mph15 km/h from SouthRainRain
November 835°F2°C45°F7°C7 mph12 km/h from NorthwestMostly CloudyRain
November 933°F1°C45°F7°C10 mph17 km/h from NortheastRainMostly Cloudy

Yes

Low of 39°F4°C, High of 54°F12°C
Wind: 11 mph17 km/h
Precipitation: None

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