No
you don't need a jacket based on the weather in Ottawa (Orléans), Ontario, Canada 1 second ago
68°F20°C & Cloudy
Wind is 2 mph3 km/h from the Southwest, gusting to 3 mph5 km/h
| May 15 | ||||
| 10pm | 66°F19°C | 2 mph3 km/h West | Mostly Clear | |
| 11pm | 64°F18°C | 2 mph3 km/h East | Mostly Clear | |
| May 16 | ||||
| 12am | 63°F17°C | 2 mph2 km/h Southeast | Mostly Cloudy | |
| 1am | 62°F17°C | 2 mph3 km/h Southeast | Partly Cloudy | |
| 2am | 61°F16°C | 2 mph4 km/h Southeast | Mostly Clear | |
| 3am | 60°F16°C | 2 mph2 km/h Southeast | Mostly Clear | |
| 4am | 58°F15°C | 2 mph3 km/h South | Mostly Clear | |
| 5am | 57°F14°C | 2 mph3 km/h Southeast | Partly Cloudy | |
| 6am | 58°F14°C | 3 mph4 km/h East | Partly Cloudy | |
| 7am | 60°F16°C | 2 mph4 km/h East | Partly Cloudy | |
| 8am | 64°F18°C | 3 mph5 km/h Southeast | Mostly Cloudy | |
| 9am | 68°F20°C | 4 mph7 km/h Southeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 15 | 63°F17°C | 74°F24°C | 3 mph5 km/h from Southwest | Mostly Cloudy | Mostly Clear |
| May 16 | 57°F14°C | 76°F25°C | 6 mph10 km/h from South | Rain | Drizzle |
| May 17 | 56°F13°C | 69°F21°C | 7 mph11 km/h from South | Rain | Rain |
| May 18 | 49°F10°C | 59°F15°C | 10 mph16 km/h from West | Drizzle | Drizzle |
| May 19 | 45°F7°C | 53°F12°C | 11 mph18 km/h from Northwest | Mostly Cloudy | Mostly Cloudy |
| May 20 | 43°F6°C | 56°F14°C | 7 mph11 km/h from North | Cloudy | Cloudy |
| May 21 | 46°F8°C | 58°F15°C | 6 mph10 km/h from Northeast | Cloudy | Drizzle |
Yes
Low of 57°F14°C, High of 76°F25°CWind: 6 mph10 km/h
Precipitation: 48% rain