No

you don't need a jacket based on the weather in Toronto, ON, Canada 2 minutes ago

72°F22°C & Mostly Cloudy

Wind is 5 mph8 km/h from the East, gusting to 9 mph14 km/h
June 6
1pm73°F23°C5 mph9 km/h EastMostly Cloudy
2pm72°F22°C7 mph12 km/h EastMostly Cloudy
3pm72°F22°C7 mph11 km/h EastMostly Cloudy
4pm72°F22°C6 mph9 km/h EastMostly Cloudy
5pm72°F22°C5 mph8 km/h SoutheastMostly Clear
6pm72°F22°C3 mph5 km/h EastMostly Clear
7pm71°F22°C3 mph4 km/h EastPartly Cloudy
8pm69°F21°C3 mph4 km/h NorthPartly Cloudy
9pm67°F19°C4 mph6 km/h NorthMostly Clear
10pm66°F19°C5 mph9 km/h NorthPartly Cloudy
11pm64°F18°C7 mph12 km/h NorthPartly Cloudy
June 7
12am63°F17°C8 mph12 km/h NorthMostly Cloudy
DateLowHighWindDayNight
June 662°F17°C74°F23°C5 mph9 km/h from EastPartly CloudyPartly Cloudy
June 758°F15°C75°F24°C5 mph7 km/h from NorthMostly ClearMostly Cloudy
June 858°F14°C67°F19°C10 mph17 km/h from EastRainDrizzle
June 957°F14°C68°F20°C6 mph10 km/h from SouthRainRain
June 1057°F14°C72°F22°C9 mph14 km/h from SouthwestDrizzleClear
June 1157°F14°C76°F25°C8 mph13 km/h from SouthwestMostly ClearMostly Clear
June 1262°F17°C77°F25°C6 mph9 km/h from WestMostly ClearPartly Cloudy

Yes

Low of 58°F15°C, High of 74°F24°C
Wind: 5 mph7 km/h
Precipitation: None

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