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 & Cloudy
Wind is 2 mph4 km/h from the E, gusting to 9 mph14 km/h
| May 1 | ||||
| 1am | 42°F5°C | 3 mph4 km/h E | Mostly Cloudy | |
| 2am | 42°F6°C | 3 mph4 km/h NE | Cloudy | |
| 3am | 43°F6°C | 2 mph4 km/h NE | Cloudy | |
| 4am | 43°F6°C | 2 mph3 km/h N | Cloudy | |
| 5am | 44°F7°C | 1 mph2 km/h NE | Cloudy | |
| 6am | 44°F7°C | 3 mph5 km/h NE | Cloudy | |
| 7am | 44°F7°C | 2 mph4 km/h E | Cloudy | |
| 8am | 44°F7°C | 2 mph3 km/h E | Cloudy | |
| 9am | 45°F7°C | 3 mph5 km/h E | Cloudy | |
| 10am | 46°F8°C | 4 mph6 km/h E | Cloudy | |
| 11am | 47°F8°C | 4 mph6 km/h E | Cloudy | |
| 12pm | 49°F10°C | 4 mph6 km/h SE | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 1 | 41°F5°C | 60°F16°C | 4 mph6 km/h from SE | Cloudy | Rain |
| May 2 | 46°F8°C | 65°F18°C | 5 mph9 km/h from NW | Mostly Cloudy | Mostly Cloudy |
| May 3 | 47°F8°C | 67°F19°C | 7 mph12 km/h from E | Mostly Cloudy | Mostly Cloudy |
| May 4 | 48°F9°C | 69°F20°C | 8 mph13 km/h from SE | Drizzle | Drizzle |
| May 5 | 51°F11°C | 60°F16°C | 8 mph13 km/h from S | Drizzle | Drizzle |
| May 6 | 49°F10°C | 67°F19°C | 8 mph13 km/h from W | Partly Cloudy | Mostly Cloudy |
| May 7 | 49°F9°C | 69°F21°C | 5 mph8 km/h from SW | Partly Cloudy | Partly Cloudy |
Yes
Low of 46°F8°C, High of 64°F18°CWind: 5 mph9 km/h
Precipitation: 27% rain