Yes

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

Why? Because too cold for just a hoodie, too warm for a parka!
35°F2°C & Clear

Wind is 4 mph7 km/h from the North, gusting to 7 mph12 km/h
October 27
1am35°F2°C5 mph8 km/h NorthClear
2am34°F1°C4 mph7 km/h NorthClear
3am33°F1°C4 mph7 km/h NortheastClear
4am33°F0°C4 mph6 km/h NortheastClear
5am32°F-0°C3 mph5 km/h EastMostly Clear
6am31°F-1°C3 mph5 km/h EastMostly Clear
7am31°F-1°C3 mph5 km/h EastMostly Clear
8am31°F-1°C2 mph4 km/h NortheastMostly Clear
9am30°F-1°C3 mph5 km/h NortheastMostly Clear
10am30°F-1°C3 mph6 km/h NortheastMostly Clear
11am30°F-1°C3 mph5 km/h EastMostly Clear
12pm30°F-1°C4 mph6 km/h EastMostly Clear
DateLowHighWindDayNight
October 2626°F-4°C46°F8°C4 mph6 km/h from NorthClearMostly Clear
October 2730°F-1°C50°F10°C6 mph10 km/h from EastMostly ClearMostly Clear
October 2833°F1°C52°F11°C10 mph16 km/h from EastMostly ClearMostly Clear
October 2935°F1°C52°F11°C8 mph12 km/h from EastMostly ClearPartly Cloudy
October 3035°F1°C48°F9°C10 mph16 km/h from NortheastRainRain
October 3140°F5°C46°F8°C12 mph19 km/h from NorthwestRainDrizzle
November 137°F3°C46°F8°C11 mph18 km/h from NorthwestCloudyMostly Cloudy

Yes

Low of 30°F-1°C, High of 50°F10°C
Wind: 6 mph10 km/h
Precipitation: None

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