Yes
you do need a jacket based on the weather in Stittsville, Ottawa, ON, Canada 1 second ago
Why? Because the wind is harsh and biting!
67°F19°C & Mostly Clear
Wind is 9 mph15 km/h from the Northwest, gusting to 21 mph33 km/h
| September 18 | ||||
| 9pm | 65°F18°C | 10 mph17 km/h Northwest | Mostly Clear | |
| 10pm | 62°F17°C | 9 mph15 km/h North | Mostly Clear | |
| 11pm | 60°F15°C | 9 mph15 km/h North | Clear | |
| September 19 | ||||
| 12am | 58°F14°C | 9 mph14 km/h North | Clear | |
| 1am | 55°F13°C | 7 mph12 km/h North | Clear | |
| 2am | 54°F12°C | 6 mph10 km/h Northwest | Clear | |
| 3am | 51°F11°C | 6 mph10 km/h Northwest | Clear | |
| 4am | 50°F10°C | 6 mph10 km/h Northwest | Mostly Clear | |
| 5am | 49°F10°C | 6 mph10 km/h Northwest | Mostly Clear | |
| 6am | 49°F9°C | 6 mph10 km/h Northwest | Mostly Clear | |
| 7am | 48°F9°C | 6 mph10 km/h Northwest | Mostly Clear | |
| 8am | 50°F10°C | 7 mph11 km/h Northwest | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 56°F13°C | 78°F26°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 19 | 46°F8°C | 65°F18°C | 8 mph13 km/h from Northwest | Clear | Clear |
| September 20 | 40°F4°C | 65°F18°C | 4 mph6 km/h from North | Clear | Clear |
| September 21 | 40°F5°C | 74°F23°C | 6 mph10 km/h from Southeast | Partly Cloudy | Partly Cloudy |
| September 22 | 55°F13°C | 70°F21°C | 7 mph12 km/h from South | Rain | Rain |
| September 23 | 58°F15°C | 73°F23°C | 6 mph9 km/h from West | Rain | Partly Cloudy |
| September 24 | 53°F12°C | 68°F20°C | 6 mph9 km/h from North | Mostly Clear | Clear |
Yes
Low of 46°F8°C, High of 65°F19°CWind: 8 mph13 km/h
Precipitation: None