Yes

you do need a jacket based on the weather in Scarborough, ON M1T 3C1, Canada 27 minutes ago

Why? Because it's pretty chilly!
56°F13°C & Mostly Cloudy

Wind is 6 mph10 km/h from the Southeast, gusting to 10 mph16 km/h
May 20
7pm55°F13°C7 mph11 km/h SoutheastMostly Cloudy
8pm52°F11°C7 mph11 km/h SoutheastCloudy
9pm49°F10°C7 mph12 km/h EastCloudy
10pm48°F9°C8 mph13 km/h EastCloudy
11pm47°F8°C7 mph11 km/h EastCloudy
May 21
12am46°F8°C8 mph12 km/h EastCloudy
1am46°F8°C7 mph12 km/h EastMostly Cloudy
2am45°F7°C7 mph11 km/h EastMostly Cloudy
3am46°F8°C8 mph13 km/h EastMostly Cloudy
4am46°F8°C8 mph12 km/h EastCloudy
5am46°F8°C9 mph15 km/h EastCloudy
6am46°F8°C9 mph15 km/h EastCloudy
DateLowHighWindDayNight
May 2038°F3°C59°F15°C4 mph7 km/h from EastMostly ClearCloudy
May 2145°F7°C52°F11°C14 mph22 km/h from EastRainRain
May 2245°F7°C49°F9°C14 mph23 km/h from EastRainDrizzle
May 2345°F7°C52°F11°C8 mph13 km/h from NorthwestDrizzleDrizzle
May 2445°F7°C60°F15°C11 mph18 km/h from NorthwestMostly CloudyMostly Clear
May 2545°F7°C65°F18°C7 mph12 km/h from NorthwestPartly CloudyMostly Clear
May 2647°F8°C67°F19°C5 mph9 km/h from NorthPartly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 52°F11°C
Wind: 14 mph22 km/h
Precipitation: 73% rain

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