Yes
you do need a jacket based on the weather in New Tecumseth (Alliston), Ontario, Canada 11 minutes ago
Why? Because it's fairly windy outside!
72°F22°C & Clear
Wind is 12 mph19 km/h from the North, gusting to 20 mph32 km/h
| September 18 | ||||
| 7pm | 70°F21°C | 11 mph18 km/h Northwest | Clear | |
| 8pm | 67°F19°C | 9 mph15 km/h Northwest | Clear | |
| 9pm | 64°F18°C | 9 mph14 km/h Northwest | Clear | |
| 10pm | 63°F17°C | 8 mph13 km/h Northwest | Mostly Clear | |
| 11pm | 62°F17°C | 7 mph12 km/h North | Clear | |
| September 19 | ||||
| 12am | 60°F16°C | 6 mph10 km/h North | Mostly Clear | |
| 1am | 58°F15°C | 6 mph9 km/h North | Mostly Clear | |
| 2am | 56°F14°C | 5 mph8 km/h North | Mostly Clear | |
| 3am | 55°F13°C | 5 mph8 km/h North | Mostly Clear | |
| 4am | 54°F12°C | 5 mph9 km/h North | Mostly Clear | |
| 5am | 53°F12°C | 5 mph8 km/h North | Mostly Clear | |
| 6am | 52°F11°C | 5 mph8 km/h North | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 53°F12°C | 77°F25°C | 7 mph12 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 19 | 49°F9°C | 68°F20°C | 7 mph11 km/h from North | Mostly Clear | Clear |
| September 20 | 44°F6°C | 69°F21°C | 7 mph11 km/h from Southeast | Mostly Clear | Partly Cloudy |
| September 21 | 48°F9°C | 78°F26°C | 9 mph14 km/h from Southeast | Partly Cloudy | Drizzle |
| September 22 | 62°F17°C | 75°F24°C | 7 mph12 km/h from Southwest | Drizzle | Drizzle |
| September 23 | 57°F14°C | 72°F22°C | 7 mph12 km/h from Northwest | Drizzle | Partly Cloudy |
| September 24 | 54°F12°C | 72°F22°C | 6 mph10 km/h from North | Partly Cloudy | Partly Cloudy |
Yes
Low of 49°F10°C, High of 68°F20°CWind: 7 mph11 km/h
Precipitation: None