No
you don't need a jacket based on the weather in Ajax, ON L1T 2K8, Canada 1 second ago
67°F20°C & Partly Cloudy
Wind is 2 mph4 km/h from the Southeast, gusting to 7 mph11 km/h
| May 16 | ||||
| 10pm | 65°F18°C | 4 mph6 km/h East | Mostly Clear | |
| 11pm | 61°F16°C | 4 mph6 km/h East | Mostly Cloudy | |
| May 17 | ||||
| 12am | 59°F15°C | 3 mph5 km/h East | Mostly Cloudy | |
| 1am | 58°F14°C | 3 mph5 km/h South | Cloudy | |
| 2am | 58°F14°C | 3 mph5 km/h East | Cloudy | |
| 3am | 58°F14°C | 6 mph10 km/h East | Cloudy | |
| 4am | 55°F13°C | 5 mph9 km/h East | Thunderstorms | |
| 5am | 55°F13°C | 5 mph8 km/h East | Thunderstorms | |
| 6am | 54°F12°C | 5 mph8 km/h Southeast | Rain | |
| 7am | 55°F13°C | 5 mph9 km/h Southeast | Rain | |
| 8am | 57°F14°C | 8 mph13 km/h South | Haze | |
| 9am | 60°F15°C | 8 mph14 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 16 | 57°F14°C | 76°F24°C | 7 mph11 km/h from South | Partly Cloudy | Thunderstorms |
| May 17 | 52°F11°C | 64°F18°C | 12 mph19 km/h from Southwest | Rain | Drizzle |
| May 18 | 48°F9°C | 57°F14°C | 17 mph27 km/h from Northwest | Windy | Partly Cloudy |
| May 19 | 43°F6°C | 57°F14°C | 13 mph20 km/h from Northwest | Mostly Clear | Mostly Clear |
| May 20 | 41°F5°C | 55°F13°C | 6 mph9 km/h from Northeast | Partly Cloudy | Mostly Cloudy |
| May 21 | 45°F7°C | 56°F13°C | 13 mph21 km/h from East | Mostly Cloudy | Rain |
| May 22 | 47°F8°C | 53°F12°C | 15 mph25 km/h from East | Drizzle | Drizzle |
Yes
Low of 52°F11°C, High of 64°F18°CWind: 12 mph19 km/h
Precipitation: 80% rain