Yes
you do need a jacket based on the weather in Oshawa (Windfields), Ontario, Canada 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it and the wind is harsh and biting!
56°F13°C & Mostly Clear
Wind is 9 mph14 km/h from the Northeast, gusting to 20 mph32 km/h
| August 18 | ||||
| 3am | 55°F13°C | 9 mph15 km/h Northeast | Clear | |
| 4am | 54°F12°C | 10 mph15 km/h Northeast | Mostly Clear | |
| 5am | 53°F12°C | 10 mph16 km/h Northeast | Mostly Clear | |
| 6am | 52°F11°C | 9 mph15 km/h Northeast | Mostly Clear | |
| 7am | 52°F11°C | 9 mph15 km/h Northeast | Mostly Clear | |
| 8am | 55°F13°C | 11 mph18 km/h Northeast | Mostly Clear | |
| 9am | 58°F15°C | 11 mph17 km/h East | Clear | |
| 10am | 61°F16°C | 10 mph16 km/h East | Mostly Clear | |
| 11am | 65°F18°C | 9 mph15 km/h East | Mostly Clear | |
| 12pm | 68°F20°C | 8 mph13 km/h East | Partly Cloudy | |
| 1pm | 70°F21°C | 7 mph12 km/h East | Partly Cloudy | |
| 2pm | 71°F21°C | 8 mph12 km/h Southeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 18 | 52°F11°C | 71°F22°C | 9 mph14 km/h from East | Mostly Clear | Partly Cloudy |
| August 19 | 56°F13°C | 73°F23°C | 7 mph12 km/h from East | Mostly Cloudy | Drizzle |
| August 20 | 63°F17°C | 76°F24°C | 6 mph9 km/h from Northeast | Drizzle | Partly Cloudy |
| August 21 | 61°F16°C | 76°F25°C | 6 mph10 km/h from East | Mostly Clear | Clear |
| August 22 | 59°F15°C | 77°F25°C | 6 mph9 km/h from Southeast | Mostly Clear | Mostly Clear |
| August 23 | 63°F17°C | 79°F26°C | 9 mph14 km/h from Southwest | Partly Cloudy | Thunderstorms |
| August 24 | 62°F17°C | 75°F24°C | 10 mph17 km/h from West | Drizzle | Mostly Clear |
Yes
Low of 55°F13°C, High of 73°F23°CWind: 7 mph12 km/h
Precipitation: 27% rain