No
you don't need a jacket based on the weather in Montreal, QC, Canada 18 minutes ago
66°F19°C & Cloudy
Wind is 1 mph2 km/h from the South, gusting to 4 mph7 km/h
| September 17 | ||||
| 11am | 68°F20°C | 2 mph2 km/h Southwest | Cloudy | |
| 12pm | 71°F22°C | 2 mph3 km/h Southwest | Cloudy | |
| 1pm | 74°F23°C | 3 mph4 km/h Southwest | Cloudy | |
| 2pm | 76°F24°C | 4 mph6 km/h Southwest | Cloudy | |
| 3pm | 77°F25°C | 4 mph7 km/h Southwest | Cloudy | |
| 4pm | 77°F25°C | 5 mph8 km/h Southwest | Cloudy | |
| 5pm | 77°F25°C | 4 mph6 km/h Southwest | Mostly Cloudy | |
| 6pm | 75°F24°C | 3 mph5 km/h South | Mostly Cloudy | |
| 7pm | 72°F22°C | 4 mph6 km/h South | Mostly Cloudy | |
| 8pm | 70°F21°C | 4 mph7 km/h South | Partly Cloudy | |
| 9pm | 68°F20°C | 5 mph7 km/h South | Partly Cloudy | |
| 10pm | 66°F19°C | 4 mph7 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 56°F13°C | 77°F25°C | 3 mph4 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| September 18 | 59°F15°C | 79°F26°C | 9 mph14 km/h from West | Mostly Clear | Partly Cloudy |
| September 19 | 48°F9°C | 67°F20°C | 7 mph11 km/h from Northwest | Clear | Clear |
| September 20 | 43°F6°C | 64°F18°C | 3 mph5 km/h from Northwest | Clear | Clear |
| September 21 | 45°F7°C | 73°F23°C | 5 mph8 km/h from Southeast | Mostly Clear | Partly Cloudy |
| September 22 | 56°F14°C | 76°F25°C | 8 mph12 km/h from South | Rain | Mostly Cloudy |
| September 23 | 62°F16°C | 74°F23°C | 5 mph8 km/h from Southwest | Rain | Mostly Cloudy |
No
Low of 59°F15°C, High of 79°F26°CWind: 9 mph14 km/h
Precipitation: 12% rain