No
you don't need a jacket based on the weather in Ottawa, ON, Canada 5 minutes ago
62°F17°C & Clear
Wind is 3 mph5 km/h from the East, gusting to 4 mph7 km/h
| September 16 | ||||
| 11pm | 61°F16°C | 3 mph5 km/h Northeast | Clear | |
| September 17 | ||||
| 12am | 59°F15°C | 3 mph5 km/h Northeast | Mostly Clear | |
| 1am | 58°F15°C | 3 mph5 km/h Northeast | Mostly Clear | |
| 2am | 57°F14°C | 3 mph4 km/h Northeast | Partly Cloudy | |
| 3am | 57°F14°C | 3 mph4 km/h Northeast | Mostly Cloudy | |
| 4am | 56°F13°C | 3 mph5 km/h Northeast | Mostly Cloudy | |
| 5am | 56°F13°C | 3 mph4 km/h Northeast | Mostly Cloudy | |
| 6am | 55°F13°C | 2 mph4 km/h Northeast | Mostly Cloudy | |
| 7am | 55°F13°C | 2 mph4 km/h Northeast | Mostly Cloudy | |
| 8am | 56°F14°C | 2 mph3 km/h Northeast | Cloudy | |
| 9am | 60°F16°C | 2 mph3 km/h Northeast | Cloudy | |
| 10am | 64°F18°C | 2 mph3 km/h East | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 50°F10°C | 78°F25°C | 2 mph3 km/h from East | Mostly Clear | Partly Cloudy |
| September 17 | 55°F13°C | 78°F26°C | 2 mph3 km/h from Southwest | Mostly Cloudy | Partly Cloudy |
| September 18 | 58°F14°C | 77°F25°C | 7 mph11 km/h from West | Mostly Clear | Mostly Clear |
| September 19 | 48°F9°C | 64°F18°C | 8 mph13 km/h from Northwest | Clear | Clear |
| September 20 | 41°F5°C | 61°F16°C | 2 mph4 km/h from North | Clear | Mostly Clear |
| September 21 | 42°F6°C | 74°F23°C | 6 mph9 km/h from South | Mostly Clear | Partly Cloudy |
| September 22 | 58°F14°C | 76°F25°C | 7 mph11 km/h from South | Thunderstorms | Partly Cloudy |
Yes
Low of 55°F13°C, High of 78°F26°CWind: 2 mph3 km/h
Precipitation: None