Yes
you do need a jacket based on the weather in Ontario, Canada 1 second ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
35°F1°C & Cloudy
Wind is 6 mph9 km/h from the Southwest, gusting to 14 mph22 km/h
| December 16 | ||||
| 10pm | 35°F1°C | 6 mph9 km/h Southwest | Cloudy | |
| 11pm | 34°F1°C | 5 mph9 km/h Southwest | Cloudy | |
| December 17 | ||||
| 12am | 34°F1°C | 5 mph8 km/h Southwest | Cloudy | |
| 1am | 33°F1°C | 5 mph8 km/h Southwest | Cloudy | |
| 2am | 33°F0°C | 5 mph8 km/h West | Cloudy | |
| 3am | 32°F0°C | 5 mph9 km/h West | Cloudy | |
| 4am | 32°F0°C | 7 mph11 km/h Northwest | Cloudy | |
| 5am | 31°F-0°C | 9 mph14 km/h Northwest | Cloudy | |
| 6am | 30°F-1°C | 12 mph20 km/h Northwest | Snow | |
| 7am | 28°F-2°C | 13 mph21 km/h Northwest | Haze | |
| 8am | 26°F-3°C | 14 mph22 km/h Northwest | Cloudy | |
| 9am | 25°F-4°C | 13 mph21 km/h Northwest | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 16 | 31°F-0°C | 37°F3°C | 7 mph12 km/h from Southeast | Drizzle | Snow |
| December 17 | 14°F-10°C | 34°F1°C | 12 mph19 km/h from Northwest | Cloudy | Cloudy |
| December 18 | -3°F-19°C | 14°F-10°C | 9 mph15 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| December 19 | -8°F-22°C | 2°F-16°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| December 20 | -9°F-23°C | -2°F-19°C | 7 mph12 km/h from Northwest | Partly Cloudy | Mostly Clear |
| December 21 | -16°F-27°C | -2°F-19°C | 5 mph8 km/h from Southwest | Mostly Clear | Partly Cloudy |
| December 22 | -6°F-21°C | 14°F-10°C | 6 mph9 km/h from South | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 14°F-10°C, High of 34°F1°CWind: 12 mph19 km/h
Precipitation: None