Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
53°F11°C & Cloudy

Wind is 10 mph16 km/h from the West, gusting to 16 mph26 km/h
October 23
6pm53°F11°C11 mph17 km/h WestPartly Cloudy
7pm51°F11°C11 mph18 km/h WestMostly Cloudy
8pm50°F10°C13 mph21 km/h WestDrizzle
9pm49°F9°C11 mph18 km/h WestMostly Cloudy
10pm47°F8°C9 mph15 km/h WestMostly Cloudy
11pm45°F7°C7 mph12 km/h NorthwestMostly Cloudy
October 24
12am44°F7°C7 mph11 km/h NorthwestMostly Cloudy
1am43°F6°C6 mph10 km/h WestMostly Cloudy
2am42°F6°C6 mph10 km/h WestMostly Cloudy
3am42°F5°C6 mph9 km/h WestMostly Cloudy
4am42°F5°C6 mph10 km/h WestMostly Cloudy
5am41°F5°C6 mph10 km/h WestCloudy
DateLowHighWindDayNight
October 2342°F5°C53°F11°C9 mph15 km/h from WestDrizzleMostly Cloudy
October 2438°F3°C51°F10°C8 mph13 km/h from NorthwestMostly CloudyPartly Cloudy
October 2536°F2°C52°F11°C4 mph6 km/h from NorthwestMostly CloudyPartly Cloudy
October 2634°F1°C51°F11°C5 mph9 km/h from NortheastMostly ClearMostly Clear
October 2733°F1°C50°F10°C10 mph17 km/h from NortheastPartly CloudyPartly Cloudy
October 2837°F3°C50°F10°C10 mph16 km/h from EastDrizzleMostly Cloudy
October 2939°F4°C52°F11°C9 mph15 km/h from EastMostly CloudyDrizzle

Yes

Low of 38°F4°C, High of 51°F11°C
Wind: 8 mph13 km/h
Precipitation: None

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