Yes

you do need a jacket based on the weather in Vaughan (Thornhill), Ontario, Canada 1 second ago

Why? Because it's raining in your area!
67°F19°C & Rain

Wind is 4 mph7 km/h from the Northeast, gusting to 8 mph13 km/h
July 20
5am67°F19°C5 mph8 km/h NortheastRain
6am66°F19°C2 mph4 km/h SoutheastRain
7am67°F19°C3 mph5 km/h SouthwestRain
8am67°F20°C4 mph6 km/h NorthwestDrizzle
9am69°F21°C5 mph7 km/h NorthwestMostly Cloudy
10am70°F21°C7 mph11 km/h NorthwestMostly Cloudy
11am72°F22°C9 mph14 km/h NorthMostly Cloudy
12pm74°F24°C10 mph15 km/h NorthwestPartly Cloudy
1pm77°F25°C11 mph18 km/h NorthwestMostly Clear
2pm78°F26°C11 mph18 km/h NorthwestMostly Clear
3pm79°F26°C12 mph20 km/h NorthwestMostly Clear
4pm79°F26°C13 mph21 km/h NorthwestMostly Clear
DateLowHighWindDayNight
July 2064°F18°C79°F26°C10 mph15 km/h from NorthwestRainClear
July 2159°F15°C75°F24°C8 mph12 km/h from NorthMostly ClearMostly Clear
July 2257°F14°C76°F24°C6 mph9 km/h from SoutheastMostly ClearMostly Clear
July 2361°F16°C84°F29°C7 mph11 km/h from SouthMostly ClearPartly Cloudy
July 2469°F21°C93°F34°C8 mph13 km/h from SouthwestPartly CloudyMostly Clear
July 2573°F23°C85°F30°C8 mph13 km/h from WestThunderstormsPartly Cloudy
July 2669°F21°C84°F29°C5 mph9 km/h from EastPartly CloudyPartly Cloudy

No

Low of 59°F15°C, High of 74°F24°C
Wind: 8 mph12 km/h
Precipitation: None

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