Yes
you do need a jacket based on the weather in Markham, ON, Canada 1 second ago
Why? Because it's cold enough to freeze the brass off a bald monkey
30°F-1°C & Clear
Wind is 4 mph7 km/h from the NE, gusting to 9 mph15 km/h
| April 25 | ||||
| 4am | 29°F-1°C | 5 mph7 km/h NE | Clear | |
| 5am | 29°F-2°C | 4 mph7 km/h NE | Clear | |
| 6am | 28°F-2°C | 4 mph7 km/h NE | Clear | |
| 7am | 29°F-2°C | 4 mph7 km/h NE | Clear | |
| 8am | 32°F-0°C | 5 mph8 km/h E | Clear | |
| 9am | 35°F2°C | 5 mph8 km/h E | Clear | |
| 10am | 39°F4°C | 5 mph7 km/h E | Clear | |
| 11am | 42°F6°C | 4 mph7 km/h SE | Clear | |
| 12pm | 45°F7°C | 4 mph7 km/h SE | Clear | |
| 1pm | 48°F9°C | 4 mph7 km/h SE | Clear | |
| 2pm | 50°F10°C | 4 mph7 km/h SE | Clear | |
| 3pm | 51°F11°C | 4 mph7 km/h SE | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 25 | 28°F-2°C | 52°F11°C | 5 mph7 km/h from SE | Clear | Clear |
| April 26 | 31°F-1°C | 57°F14°C | 11 mph17 km/h from E | Clear | Partly Cloudy |
| April 27 | 41°F5°C | 57°F14°C | 10 mph15 km/h from SE | Rain | Drizzle |
| April 28 | 53°F11°C | 78°F26°C | 7 mph12 km/h from SW | Rain | Rain |
| April 29 | 56°F14°C | 79°F26°C | 9 mph15 km/h from S | Partly Cloudy | Drizzle |
| April 30 | 52°F11°C | 73°F23°C | 9 mph15 km/h from W | Drizzle | Mostly Clear |
| May 1 | 47°F8°C | 73°F23°C | 8 mph13 km/h from W | Partly Cloudy | Mostly Clear |
Yes
Low of 31°F-1°C, High of 56°F14°CWind: 11 mph17 km/h
Precipitation: None