No
you don't need a jacket based on the weather in Ottawa (Orléans), Ontario, Canada 27 minutes ago
72°F22°C & Clear
Wind is 8 mph13 km/h from the North, gusting to 12 mph19 km/h
| September 11 | ||||
| 2pm | 73°F23°C | 9 mph15 km/h North | Clear | |
| 3pm | 73°F23°C | 10 mph16 km/h Northwest | Clear | |
| 4pm | 73°F23°C | 10 mph15 km/h North | Clear | |
| 5pm | 71°F22°C | 9 mph15 km/h North | Clear | |
| 6pm | 69°F21°C | 9 mph14 km/h North | Clear | |
| 7pm | 65°F18°C | 7 mph11 km/h North | Clear | |
| 8pm | 60°F16°C | 6 mph9 km/h North | Clear | |
| 9pm | 57°F14°C | 5 mph9 km/h North | Clear | |
| 10pm | 55°F13°C | 5 mph8 km/h North | Clear | |
| 11pm | 53°F12°C | 4 mph7 km/h North | Clear | |
| September 12 | ||||
| 12am | 52°F11°C | 5 mph7 km/h North | Clear | |
| 1am | 51°F10°C | 4 mph7 km/h Northeast | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 11 | 52°F11°C | 73°F23°C | 7 mph12 km/h from North | Mostly Clear | Clear |
| September 12 | 46°F8°C | 69°F21°C | 3 mph4 km/h from East | Partly Cloudy | Mostly Cloudy |
| September 13 | 51°F10°C | 71°F22°C | 3 mph5 km/h from Southwest | Partly Cloudy | Partly Cloudy |
| September 14 | 54°F12°C | 72°F22°C | 6 mph9 km/h from North | Mostly Clear | Mostly Clear |
| September 15 | 50°F10°C | 74°F23°C | 3 mph4 km/h from North | Mostly Clear | Mostly Clear |
| September 16 | 53°F12°C | 77°F25°C | 2 mph3 km/h from East | Mostly Clear | Mostly Clear |
| September 17 | 56°F13°C | 80°F26°C | 3 mph5 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 46°F8°C, High of 69°F21°CWind: 3 mph4 km/h
Precipitation: None