No
you don't need a jacket based on the weather in Oakville, ON, Canada 18 minutes ago
71°F22°C & Mostly Clear
Wind is 8 mph13 km/h from the East, gusting to 11 mph18 km/h
| September 15 | ||||
| 2pm | 73°F23°C | 8 mph14 km/h East | Mostly Clear | |
| 3pm | 73°F23°C | 8 mph13 km/h East | Clear | |
| 4pm | 73°F23°C | 8 mph12 km/h East | Clear | |
| 5pm | 72°F22°C | 8 mph12 km/h East | Clear | |
| 6pm | 70°F21°C | 7 mph11 km/h East | Clear | |
| 7pm | 68°F20°C | 5 mph8 km/h East | Clear | |
| 8pm | 65°F19°C | 4 mph6 km/h East | Mostly Clear | |
| 9pm | 64°F18°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 10pm | 63°F17°C | 4 mph7 km/h Northeast | Mostly Clear | |
| 11pm | 62°F16°C | 5 mph8 km/h Northeast | Mostly Clear | |
| September 16 | ||||
| 12am | 61°F16°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 1am | 60°F16°C | 5 mph7 km/h North | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 58°F15°C | 73°F23°C | 6 mph10 km/h from East | Mostly Clear | Mostly Clear |
| September 16 | 58°F15°C | 73°F23°C | 7 mph11 km/h from East | Partly Cloudy | Clear |
| September 17 | 58°F14°C | 75°F24°C | 4 mph7 km/h from East | Clear | Mostly Clear |
| September 18 | 59°F15°C | 77°F25°C | 4 mph6 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 19 | 57°F14°C | 70°F21°C | 7 mph11 km/h from Northeast | Mostly Clear | Clear |
| September 20 | 55°F13°C | 65°F18°C | 12 mph19 km/h from East | Partly Cloudy | Partly Cloudy |
| September 21 | 57°F14°C | 74°F23°C | 7 mph11 km/h from South | Partly Cloudy | Thunderstorms |
Yes
Low of 58°F15°C, High of 73°F23°CWind: 7 mph11 km/h
Precipitation: None