Yes
you do need a jacket based on the weather in Whitby, ON, Canada 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
53°F12°C & Cloudy
Wind is 5 mph8 km/h from the Northeast, gusting to 10 mph16 km/h
| May 13 | ||||
| 2am | 53°F12°C | 5 mph8 km/h Northeast | Cloudy | |
| 3am | 53°F11°C | 5 mph8 km/h Northeast | Cloudy | |
| 4am | 52°F11°C | 5 mph8 km/h East | Partly Cloudy | |
| 5am | 52°F11°C | 6 mph9 km/h East | Cloudy | |
| 6am | 52°F11°C | 6 mph10 km/h East | Cloudy | |
| 7am | 53°F12°C | 6 mph9 km/h East | Cloudy | |
| 8am | 56°F13°C | 7 mph11 km/h East | Cloudy | |
| 9am | 59°F15°C | 6 mph10 km/h East | Cloudy | |
| 10am | 62°F17°C | 7 mph11 km/h East | Cloudy | |
| 11am | 65°F18°C | 8 mph12 km/h East | Cloudy | |
| 12pm | 67°F19°C | 9 mph14 km/h Southeast | Cloudy | |
| 1pm | 68°F20°C | 9 mph15 km/h Southeast | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 13 | 51°F11°C | 68°F20°C | 9 mph14 km/h from East | Drizzle | Rain |
| May 14 | 55°F13°C | 62°F17°C | 13 mph21 km/h from East | Drizzle | Drizzle |
| May 15 | 54°F12°C | 68°F20°C | 6 mph10 km/h from Southeast | Drizzle | Partly Cloudy |
| May 16 | 55°F13°C | 67°F20°C | 6 mph10 km/h from South | Rain | Partly Cloudy |
| May 17 | 54°F12°C | 67°F20°C | 9 mph15 km/h from Southwest | Drizzle | Drizzle |
| May 18 | 51°F11°C | 64°F18°C | 10 mph15 km/h from West | Mostly Cloudy | Drizzle |
| May 19 | 52°F11°C | 66°F19°C | 13 mph21 km/h from Northwest | Partly Cloudy | Mostly Clear |
Yes
Low of 55°F13°C, High of 63°F17°CWind: 13 mph21 km/h
Precipitation: 52% rain