Yes
you do need a jacket based on the weather in Markham, ON, Canada 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
58°F15°C & Clear
Wind is 12 mph20 km/h from the Northwest, gusting to 18 mph29 km/h
| May 19 | ||||
| 5pm | 58°F15°C | 12 mph20 km/h Northwest | Clear | |
| 6pm | 57°F14°C | 12 mph20 km/h Northwest | Clear | |
| 7pm | 55°F13°C | 12 mph19 km/h North | Clear | |
| 8pm | 53°F12°C | 11 mph18 km/h North | Clear | |
| 9pm | 50°F10°C | 8 mph13 km/h North | Clear | |
| 10pm | 47°F8°C | 9 mph14 km/h North | Clear | |
| 11pm | 45°F7°C | 8 mph13 km/h North | Clear | |
| May 20 | ||||
| 12am | 44°F7°C | 8 mph13 km/h North | Clear | |
| 1am | 43°F6°C | 7 mph11 km/h North | Clear | |
| 2am | 42°F5°C | 7 mph11 km/h North | Clear | |
| 3am | 40°F5°C | 7 mph11 km/h North | Clear | |
| 4am | 40°F4°C | 7 mph11 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 19 | 44°F7°C | 58°F15°C | 8 mph12 km/h from North | Mostly Clear | Clear |
| May 20 | 39°F4°C | 60°F15°C | 6 mph9 km/h from Northeast | Partly Cloudy | Cloudy |
| May 21 | 46°F8°C | 54°F12°C | 13 mph21 km/h from East | Rain | Rain |
| May 22 | 45°F7°C | 49°F9°C | 13 mph20 km/h from East | Rain | Rain |
| May 23 | 45°F7°C | 51°F11°C | 7 mph11 km/h from North | Drizzle | Drizzle |
| May 24 | 46°F8°C | 57°F14°C | 9 mph14 km/h from Northwest | Mostly Cloudy | Partly Cloudy |
| May 25 | 45°F7°C | 62°F16°C | 8 mph12 km/h from Northwest | Mostly Cloudy | Mostly Clear |
Yes
Low of 39°F4°C, High of 60°F16°CWind: 6 mph9 km/h
Precipitation: None