No
you don't need a jacket based on the weather in Ottawa, ON, Canada 1 minute ago
69°F20°C & Mostly Clear
Wind is 8 mph13 km/h from the Northwest, gusting to 16 mph25 km/h
| May 10 | ||||
| 3pm | 70°F21°C | 8 mph13 km/h Northwest | Mostly Clear | |
| 4pm | 70°F21°C | 10 mph16 km/h Northwest | Mostly Clear | |
| 5pm | 70°F21°C | 11 mph17 km/h Northwest | Partly Cloudy | |
| 6pm | 69°F20°C | 12 mph19 km/h Northwest | Mostly Clear | |
| 7pm | 65°F18°C | 12 mph20 km/h Northwest | Mostly Clear | |
| 8pm | 60°F16°C | 13 mph20 km/h Northwest | Mostly Clear | |
| 9pm | 55°F13°C | 12 mph20 km/h Northwest | Mostly Clear | |
| 10pm | 51°F11°C | 12 mph19 km/h North | Clear | |
| 11pm | 48°F9°C | 11 mph18 km/h North | Clear | |
| May 11 | ||||
| 12am | 46°F8°C | 10 mph16 km/h North | Clear | |
| 1am | 44°F7°C | 9 mph14 km/h North | Clear | |
| 2am | 43°F6°C | 7 mph12 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 10 | 46°F8°C | 70°F21°C | 7 mph11 km/h from Northwest | Mostly Clear | Clear |
| May 11 | 37°F3°C | 63°F17°C | 6 mph9 km/h from Northwest | Clear | Partly Cloudy |
| May 12 | 46°F8°C | 74°F23°C | 6 mph10 km/h from Southwest | Mostly Clear | Mostly Clear |
| May 13 | 52°F11°C | 76°F25°C | 7 mph11 km/h from Southeast | Mostly Cloudy | Cloudy |
| May 14 | 59°F15°C | 71°F22°C | 7 mph11 km/h from South | Drizzle | Cloudy |
| May 15 | 59°F15°C | 73°F23°C | 4 mph6 km/h from Southeast | Mostly Cloudy | Mostly Clear |
| May 16 | 58°F15°C | 75°F24°C | 6 mph10 km/h from South | Mostly Cloudy | Thunderstorms |
Yes
Low of 37°F3°C, High of 63°F17°CWind: 6 mph9 km/h
Precipitation: None