Yes
you do need a jacket based on the weather in Ottawa, ON, Canada 5 minutes ago
Why? Because the cold's there, but it's just a reminder, not an invasion!
49°F10°C & Mostly Clear
Wind is 2 mph3 km/h from the North, gusting to 4 mph7 km/h
| September 16 | ||||
| 7am | 49°F10°C | 2 mph4 km/h North | Mostly Clear | |
| 8am | 52°F11°C | 2 mph4 km/h North | Clear | |
| 9am | 57°F14°C | 2 mph4 km/h Northeast | Clear | |
| 10am | 63°F17°C | 3 mph4 km/h East | Clear | |
| 11am | 67°F19°C | 3 mph4 km/h East | Clear | |
| 12pm | 70°F21°C | 3 mph4 km/h East | Clear | |
| 1pm | 73°F23°C | 3 mph4 km/h East | Clear | |
| 2pm | 76°F24°C | 3 mph5 km/h East | Clear | |
| 3pm | 77°F25°C | 3 mph5 km/h East | Clear | |
| 4pm | 77°F25°C | 3 mph5 km/h East | Clear | |
| 5pm | 77°F25°C | 3 mph6 km/h East | Clear | |
| 6pm | 75°F24°C | 3 mph5 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 49°F10°C | 77°F25°C | 3 mph5 km/h from East | Clear | Mostly Clear |
| September 17 | 55°F13°C | 77°F25°C | 2 mph3 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| September 18 | 57°F14°C | 75°F24°C | 6 mph10 km/h from West | Mostly Clear | Mostly Clear |
| September 19 | 49°F10°C | 66°F19°C | 8 mph12 km/h from Northwest | Clear | Clear |
| September 20 | 44°F6°C | 64°F18°C | 2 mph4 km/h from East | Clear | Partly Cloudy |
| September 21 | 44°F7°C | 74°F24°C | 5 mph9 km/h from South | Partly Cloudy | Partly Cloudy |
| September 22 | 60°F15°C | 80°F27°C | 9 mph14 km/h from Southwest | Drizzle | Mostly Clear |
Yes
Low of 55°F13°C, High of 77°F25°CWind: 2 mph3 km/h
Precipitation: None