Yes

you do need a jacket based on the weather in Waterloo, ON N2J 2Z2, Canada 25 seconds ago

Why? Because it's quite chilly!
35°F2°C & Cloudy

Wind is 6 mph9 km/h from the Northwest, gusting to 14 mph22 km/h
November 6
1pm35°F2°C6 mph9 km/h NorthwestCloudy
2pm38°F3°C7 mph12 km/h NorthwestMostly Cloudy
3pm40°F4°C7 mph11 km/h NorthwestMostly Cloudy
4pm42°F5°C9 mph15 km/h NorthwestPartly Cloudy
5pm43°F6°C10 mph16 km/h NorthwestMostly Cloudy
6pm44°F7°C12 mph19 km/h WestPartly Cloudy
7pm44°F7°C12 mph19 km/h WestCloudy
8pm44°F7°C10 mph17 km/h WestCloudy
9pm43°F6°C9 mph15 km/h WestCloudy
10pm42°F5°C7 mph11 km/h WestMostly Cloudy
11pm39°F4°C5 mph9 km/h WestPartly Cloudy
November 7
12am37°F3°C4 mph7 km/h SouthwestMostly Clear
DateLowHighWindDayNight
November 634°F1°C44°F7°C8 mph13 km/h from WestMostly CloudyCloudy
November 735°F2°C51°F11°C15 mph23 km/h from SouthwestRainMostly Cloudy
November 836°F2°C44°F6°C6 mph9 km/h from NorthwestMostly CloudyRain
November 927°F-3°C37°F3°C14 mph23 km/h from NorthSnowSnow
November 1025°F-4°C31°F-0°C10 mph16 km/h from NorthwestMostly CloudyMostly Cloudy
November 1124°F-4°C33°F1°C14 mph22 km/h from WestCloudyWindy
November 1229°F-2°C40°F4°C16 mph26 km/h from WestDrizzleWindy

Yes

Low of 36°F2°C, High of 51°F11°C
Wind: 15 mph23 km/h
Precipitation: 72% rain

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