Yes

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

Why? Because it's cool enough your breath is visible, but your nose isn’t red yet and it's on the windy side!
42°F6°C & Cloudy

Wind is 11 mph18 km/h from the Southeast, gusting to 24 mph39 km/h
November 7
1pm43°F6°C12 mph19 km/h SoutheastCloudy
2pm45°F7°C12 mph19 km/h SoutheastCloudy
3pm46°F8°C11 mph18 km/h SouthCloudy
4pm46°F8°C9 mph14 km/h SouthCloudy
5pm47°F8°C8 mph13 km/h SouthDrizzle
6pm49°F9°C12 mph20 km/h SouthwestRain
7pm48°F9°C12 mph19 km/h SouthwestDrizzle
8pm50°F10°C13 mph21 km/h SouthwestDrizzle
9pm50°F10°C12 mph20 km/h SouthwestDrizzle
10pm51°F10°C12 mph19 km/h SouthwestCloudy
11pm50°F10°C11 mph18 km/h SouthwestCloudy
November 8
12am50°F10°C10 mph17 km/h SouthwestCloudy
DateLowHighWindDayNight
November 731°F-0°C51°F10°C11 mph18 km/h from SouthRainMostly Cloudy
November 834°F1°C47°F8°C8 mph13 km/h from NorthwestPartly CloudySnow
November 928°F-2°C35°F2°C14 mph22 km/h from NorthSnowMostly Cloudy
November 1025°F-4°C33°F0°C9 mph14 km/h from NorthwestMostly CloudyMostly Cloudy
November 1123°F-5°C38°F3°C13 mph21 km/h from WestMostly CloudyDrizzle
November 1236°F2°C44°F7°C14 mph23 km/h from WestCloudyMostly Cloudy
November 1334°F1°C42°F5°C11 mph18 km/h from WestMostly CloudyPartly Cloudy

Yes

Low of 34°F1°C, High of 47°F9°C
Wind: 8 mph13 km/h
Precipitation: None

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