Yes
you do need a jacket based on the weather in Ottawa, ON, Canada 3 minutes ago
Why? Because it's cool enough your breath is visible, but your nose isn’t red yet and it's so windy, your hat has officially retired from your head!
41°F5°C & Mostly Clear
Wind is 8 mph13 km/h from the North, gusting to 23 mph37 km/h
| May 11 | ||||
| 3am | 39°F4°C | 7 mph11 km/h North | Clear | |
| 4am | 38°F3°C | 6 mph10 km/h Northwest | Clear | |
| 5am | 37°F3°C | 6 mph10 km/h Northwest | Clear | |
| 6am | 36°F2°C | 6 mph9 km/h Northwest | Clear | |
| 7am | 37°F3°C | 8 mph12 km/h North | Clear | |
| 8am | 40°F4°C | 8 mph13 km/h North | Clear | |
| 9am | 43°F6°C | 7 mph12 km/h North | Clear | |
| 10am | 47°F8°C | 7 mph11 km/h North | Clear | |
| 11am | 51°F10°C | 7 mph10 km/h Northwest | Clear | |
| 12pm | 54°F12°C | 6 mph10 km/h Northwest | Clear | |
| 1pm | 58°F14°C | 6 mph10 km/h Northwest | Clear | |
| 2pm | 60°F16°C | 6 mph9 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 11 | 36°F2°C | 63°F17°C | 6 mph9 km/h from Northwest | Clear | Partly Cloudy |
| May 12 | 45°F7°C | 75°F24°C | 6 mph10 km/h from West | Mostly Clear | Mostly Clear |
| May 13 | 52°F11°C | 78°F25°C | 7 mph11 km/h from Southeast | Mostly Cloudy | Mostly Cloudy |
| May 14 | 58°F14°C | 73°F23°C | 6 mph10 km/h from South | Cloudy | Cloudy |
| May 15 | 59°F15°C | 70°F21°C | 3 mph5 km/h from Southeast | Cloudy | Mostly Clear |
| May 16 | 57°F14°C | 77°F25°C | 6 mph10 km/h from South | Drizzle | Mostly Cloudy |
| May 17 | 59°F15°C | 75°F24°C | 10 mph16 km/h from Southwest | Partly Cloudy | Mostly Cloudy |
Yes
Low of 45°F7°C, High of 75°F24°CWind: 6 mph10 km/h
Precipitation: None