Yes
you do need a jacket based on the weather in Newmarket, ON, Canada 1 second ago
Why? Because it's pretty chilly.
50°F10°C & Mostly Cloudy
Wind is 1 mph2 km/h from the NW, gusting to 4 mph7 km/h
| April 18 | ||||
| 9pm | 50°F10°C | 2 mph3 km/h NW | Mostly Cloudy | |
| 10pm | 49°F9°C | 2 mph3 km/h W | Mostly Cloudy | |
| 11pm | 48°F9°C | 2 mph3 km/h W | Mostly Cloudy | |
| April 19 | ||||
| 12am | 47°F8°C | 2 mph3 km/h SE | Mostly Cloudy | |
| 1am | 46°F8°C | 2 mph4 km/h SE | Mostly Cloudy | |
| 2am | 46°F8°C | 3 mph5 km/h SE | Mostly Cloudy | |
| 3am | 45°F7°C | 4 mph6 km/h SE | Mostly Cloudy | |
| 4am | 44°F7°C | 5 mph7 km/h SE | Cloudy | |
| 5am | 45°F7°C | 6 mph10 km/h SE | Cloudy | |
| 6am | 45°F7°C | 7 mph12 km/h SE | Cloudy | |
| 7am | 46°F8°C | 7 mph12 km/h SE | Cloudy | |
| 8am | 46°F8°C | 9 mph14 km/h SE | Drizzle | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 18 | 46°F8°C | 55°F13°C | 4 mph7 km/h from W | Cloudy | Mostly Cloudy |
| April 19 | 40°F4°C | 57°F14°C | 11 mph18 km/h from SW | Drizzle | Partly Cloudy |
| April 20 | 34°F1°C | 45°F7°C | 13 mph21 km/h from W | Mostly Cloudy | Mostly Clear |
| April 21 | 32°F-0°C | 51°F11°C | 13 mph21 km/h from W | Mostly Clear | Mostly Clear |
| April 22 | 30°F-1°C | 53°F11°C | 7 mph12 km/h from W | Mostly Clear | Mostly Cloudy |
| April 23 | 38°F3°C | 56°F13°C | 11 mph18 km/h from SW | Drizzle | Drizzle |
| April 24 | 30°F-1°C | 46°F8°C | 16 mph26 km/h from NW | Windy | Clear |
Yes
Low of 40°F5°C, High of 57°F14°CWind: 11 mph18 km/h
Precipitation: 64% rain