Yes

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

Why? Because too cold for just a hoodie, too warm for a parka!
43°F6°C & Cloudy

Wind is 7 mph12 km/h from the West, gusting to 16 mph26 km/h
November 6
3pm44°F6°C8 mph13 km/h WestPartly Cloudy
4pm45°F7°C8 mph14 km/h WestCloudy
5pm46°F8°C8 mph13 km/h WestMostly Cloudy
6pm47°F9°C8 mph13 km/h WestMostly Cloudy
7pm48°F9°C10 mph16 km/h WestCloudy
8pm48°F9°C10 mph16 km/h WestCloudy
9pm47°F8°C8 mph14 km/h WestCloudy
10pm45°F7°C8 mph12 km/h WestCloudy
11pm43°F6°C6 mph9 km/h WestPartly Cloudy
November 7
12am41°F5°C5 mph8 km/h WestPartly Cloudy
1am39°F4°C4 mph7 km/h SouthwestPartly Cloudy
2am38°F3°C4 mph6 km/h SouthwestPartly Cloudy
DateLowHighWindDayNight
November 636°F2°C48°F9°C8 mph12 km/h from WestMostly CloudyMostly Cloudy
November 736°F2°C54°F12°C15 mph25 km/h from SouthwestRainPartly Cloudy
November 840°F5°C47°F9°C5 mph8 km/h from NorthwestMostly CloudyRain
November 930°F-1°C44°F7°C14 mph22 km/h from NorthRainSnow
November 1028°F-2°C35°F2°C8 mph13 km/h from NorthwestMostly CloudyMostly Cloudy
November 1128°F-2°C37°F3°C14 mph22 km/h from WestMostly CloudyWindy
November 1234°F1°C46°F8°C17 mph28 km/h from WestDrizzleDrizzle

Yes

Low of 37°F3°C, High of 54°F12°C
Wind: 15 mph25 km/h
Precipitation: 78% rain

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