Yes
you do need a jacket based on the weather in Ottawa (Orléans), Ontario, Canada 1 second ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet!
44°F7°C & Mostly Cloudy
Wind is 4 mph6 km/h from the Northwest, gusting to 8 mph13 km/h
| May 10 | ||||
| 5am | 44°F7°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 6am | 44°F7°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 7am | 46°F8°C | 5 mph8 km/h Northwest | Partly Cloudy | |
| 8am | 49°F10°C | 6 mph9 km/h Northwest | Partly Cloudy | |
| 9am | 53°F12°C | 7 mph11 km/h Northwest | Mostly Clear | |
| 10am | 57°F14°C | 8 mph12 km/h Northwest | Mostly Clear | |
| 11am | 60°F16°C | 8 mph14 km/h Northwest | Mostly Clear | |
| 12pm | 63°F17°C | 8 mph13 km/h Northwest | Mostly Clear | |
| 1pm | 65°F18°C | 8 mph13 km/h Northwest | Clear | |
| 2pm | 67°F19°C | 8 mph13 km/h Northwest | Mostly Clear | |
| 3pm | 68°F20°C | 8 mph13 km/h Northwest | Partly Cloudy | |
| 4pm | 69°F20°C | 8 mph13 km/h Northwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 10 | 44°F6°C | 69°F20°C | 8 mph13 km/h from Northwest | Mostly Clear | Mostly Clear |
| May 11 | 37°F3°C | 63°F17°C | 6 mph10 km/h from Northwest | Clear | Mostly Cloudy |
| May 12 | 46°F8°C | 75°F24°C | 7 mph11 km/h from Southwest | Mostly Clear | Mostly Clear |
| May 13 | 52°F11°C | 78°F25°C | 7 mph11 km/h from Southeast | Mostly Cloudy | Drizzle |
| May 14 | 58°F14°C | 72°F22°C | 6 mph10 km/h from South | Drizzle | Cloudy |
| May 15 | 61°F16°C | 75°F24°C | 3 mph5 km/h from East | Drizzle | Partly Cloudy |
| May 16 | 60°F16°C | 80°F27°C | 5 mph8 km/h from Southeast | Mostly Cloudy | Thunderstorms |
Yes
Low of 37°F3°C, High of 64°F18°CWind: 6 mph10 km/h
Precipitation: None