Yes
you do need a jacket based on the weather in Ottawa, ON, Canada 1 second ago
Why? Because it's bitterly cold!
41°F5°C & Clear
Wind is 2 mph3 km/h from the W, gusting to 6 mph10 km/h
| October 18 | ||||
| 10am | 45°F7°C | 3 mph4 km/h W | Clear | |
| 11am | 50°F10°C | 3 mph5 km/h SW | Clear | |
| 12pm | 54°F12°C | 4 mph6 km/h SW | Clear | |
| 1pm | 58°F14°C | 4 mph7 km/h SW | Clear | |
| 2pm | 60°F16°C | 5 mph8 km/h SW | Clear | |
| 3pm | 62°F17°C | 5 mph7 km/h SW | Clear | |
| 4pm | 62°F17°C | 4 mph7 km/h SW | Clear | |
| 5pm | 61°F16°C | 3 mph5 km/h SW | Clear | |
| 6pm | 57°F14°C | 3 mph6 km/h S | Clear | |
| 7pm | 54°F12°C | 4 mph7 km/h S | Clear | |
| 8pm | 51°F11°C | 4 mph7 km/h SW | Clear | |
| 9pm | 49°F9°C | 4 mph7 km/h SW | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| October 18 | 34°F1°C | 62°F17°C | 3 mph5 km/h from SW | Clear | Clear |
| October 19 | 39°F4°C | 67°F19°C | 5 mph8 km/h from SW | Clear | Mostly Clear |
| October 20 | 43°F6°C | 67°F20°C | 7 mph12 km/h from SW | Partly Cloudy | Partly Cloudy |
| October 21 | 50°F10°C | 71°F22°C | 5 mph8 km/h from SW | Mostly Clear | Mostly Clear |
| October 22 | 51°F11°C | 73°F23°C | 6 mph10 km/h from S | Mostly Clear | Partly Cloudy |
| October 23 | 53°F12°C | 71°F22°C | 9 mph15 km/h from SW | Mostly Cloudy | Rain |
| October 24 | 41°F5°C | 54°F12°C | 10 mph16 km/h from NW | Partly Cloudy | Partly Cloudy |
Yes
Low of 38°F4°C, High of 67°F20°CWind: 5 mph8 km/h
Precipitation: None