Yes

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

Why? Because it's that kind of drizzle where you’re too stubborn to admit you’re getting wet and too cold for just a hoodie, too warm for a parka and the wind is harsh and biting!
44°F7°C & Drizzle

Wind is 14 mph23 km/h from the Northeast, gusting to 22 mph36 km/h
October 30
10pm44°F7°C15 mph24 km/h NortheastDrizzle
11pm43°F6°C16 mph25 km/h NortheastRain
October 31
12am42°F6°C17 mph27 km/h NorthRain
1am42°F5°C17 mph28 km/h NorthDrizzle
2am42°F5°C17 mph28 km/h NorthRain
3am42°F5°C17 mph28 km/h NorthRain
4am42°F5°C18 mph29 km/h NorthDrizzle
5am42°F5°C15 mph24 km/h NorthDrizzle
6am41°F5°C15 mph24 km/h NorthDrizzle
7am41°F5°C15 mph25 km/h NorthDrizzle
8am40°F5°C16 mph26 km/h NorthDrizzle
9am40°F5°C16 mph27 km/h NorthwestDrizzle
DateLowHighWindDayNight
October 3037°F3°C46°F8°C11 mph17 km/h from NortheastRainRain
October 3140°F4°C45°F7°C21 mph33 km/h from NorthwestRainMostly Cloudy
November 136°F2°C45°F7°C9 mph14 km/h from NorthwestMostly CloudyPartly Cloudy
November 232°F0°C49°F9°C6 mph9 km/h from SouthwestPartly CloudyMostly Cloudy
November 338°F3°C48°F9°C15 mph24 km/h from SouthwestDrizzleDrizzle
November 438°F3°C49°F9°C16 mph26 km/h from NorthwestWindyPartly Cloudy
November 536°F2°C48°F9°C11 mph17 km/h from SouthDrizzleDrizzle

Yes

Low of 40°F5°C, High of 46°F8°C
Wind: 21 mph33 km/h
Precipitation: 91% rain

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