No
you don't need a jacket based on the weather in Ajax, ON, Canada 1 second ago
74°F23°C & Clear
Wind is 7 mph11 km/h from the Southeast, gusting to 9 mph15 km/h
| September 15 | ||||
| 4pm | 74°F23°C | 7 mph11 km/h Southeast | Clear | |
| 5pm | 73°F23°C | 6 mph10 km/h Southeast | Clear | |
| 6pm | 71°F22°C | 5 mph8 km/h Southeast | Clear | |
| 7pm | 69°F20°C | 3 mph5 km/h Southeast | Clear | |
| 8pm | 65°F18°C | 3 mph4 km/h East | Clear | |
| 9pm | 63°F17°C | 3 mph5 km/h Northeast | Clear | |
| 10pm | 62°F16°C | 4 mph7 km/h Northeast | Mostly Clear | |
| 11pm | 61°F16°C | 3 mph5 km/h Northeast | Mostly Clear | |
| September 16 | ||||
| 12am | 60°F16°C | 4 mph6 km/h North | Mostly Clear | |
| 1am | 60°F15°C | 5 mph7 km/h North | Mostly Clear | |
| 2am | 59°F15°C | 5 mph8 km/h North | Mostly Clear | |
| 3am | 58°F14°C | 5 mph8 km/h North | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 56°F13°C | 74°F23°C | 6 mph9 km/h from East | Mostly Clear | Mostly Clear |
| September 16 | 57°F14°C | 75°F24°C | 6 mph9 km/h from East | Partly Cloudy | Clear |
| September 17 | 57°F14°C | 75°F24°C | 5 mph7 km/h from Southeast | Mostly Clear | Mostly Clear |
| September 18 | 58°F15°C | 78°F25°C | 5 mph8 km/h from West | Mostly Clear | Mostly Clear |
| September 19 | 55°F13°C | 70°F21°C | 6 mph10 km/h from Northeast | Clear | Clear |
| September 20 | 50°F10°C | 66°F19°C | 10 mph16 km/h from East | Mostly Clear | Mostly Clear |
| September 21 | 56°F14°C | 75°F24°C | 7 mph12 km/h from Southeast | Partly Cloudy | Partly Cloudy |
Yes
Low of 56°F14°C, High of 74°F24°CWind: 6 mph9 km/h
Precipitation: None