Yes

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

Why? Because the wind makes walking forward feel like moonwalking in reverse!
85°F29°C & Windy

Wind is 17 mph28 km/h from the Southwest, gusting to 26 mph42 km/h
June 4
4pm85°F29°C18 mph28 km/h SouthwestWindy
5pm84°F29°C18 mph28 km/h SouthwestWindy
6pm83°F29°C17 mph27 km/h SouthwestWindy
7pm81°F27°C12 mph20 km/h SouthwestPartly Cloudy
8pm78°F26°C9 mph15 km/h WestCloudy
9pm75°F24°C6 mph10 km/h WestCloudy
10pm73°F23°C6 mph9 km/h NorthwestCloudy
11pm71°F22°C5 mph8 km/h NorthwestDrizzle
June 5
12am69°F21°C4 mph7 km/h NorthwestCloudy
1am68°F20°C4 mph7 km/h NorthwestCloudy
2am67°F19°C4 mph6 km/h WestCloudy
3am66°F19°C4 mph7 km/h NorthwestCloudy
DateLowHighWindDayNight
June 464°F18°C87°F30°C12 mph19 km/h from SouthwestMostly ClearRain
June 561°F16°C69°F21°C6 mph9 km/h from NortheastHeavy RainMostly Cloudy
June 656°F14°C73°F23°C6 mph10 km/h from NortheastPartly CloudyMostly Cloudy
June 758°F15°C76°F24°C7 mph11 km/h from NorthPartly CloudyPartly Cloudy
June 856°F13°C71°F22°C6 mph10 km/h from EastPartly CloudyPartly Cloudy
June 956°F13°C75°F24°C10 mph16 km/h from SouthwestRainDrizzle
June 1057°F14°C71°F22°C9 mph14 km/h from WestDrizzleClear

No

Low of 61°F16°C, High of 70°F21°C
Wind: 6 mph9 km/h
Precipitation: 71% rain

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