No
you don't need a jacket based on the weather in Hamilton, ON, Canada 34 seconds ago
66°F19°C & Cloudy
Wind is 6 mph10 km/h from the Northeast, gusting to 13 mph21 km/h
| June 15 | ||||
| 8pm | 66°F19°C | 6 mph10 km/h Northeast | Cloudy | |
| 9pm | 63°F17°C | 4 mph7 km/h Northeast | Mostly Cloudy | |
| 10pm | 62°F17°C | 4 mph7 km/h East | Mostly Clear | |
| 11pm | 60°F16°C | 4 mph7 km/h Northeast | Mostly Clear | |
| June 16 | ||||
| 12am | 59°F15°C | 4 mph6 km/h Northeast | Clear | |
| 1am | 58°F14°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 2am | 57°F14°C | 4 mph6 km/h Northeast | Clear | |
| 3am | 57°F14°C | 4 mph7 km/h Northeast | Partly Cloudy | |
| 4am | 57°F14°C | 4 mph7 km/h Northeast | Partly Cloudy | |
| 5am | 57°F14°C | 4 mph7 km/h Northeast | Mostly Cloudy | |
| 6am | 57°F14°C | 4 mph6 km/h Northeast | Mostly Cloudy | |
| 7am | 59°F15°C | 4 mph6 km/h Northeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 15 | 55°F13°C | 70°F21°C | 6 mph10 km/h from Northeast | Mostly Cloudy | Partly Cloudy |
| June 16 | 57°F14°C | 75°F24°C | 6 mph9 km/h from Northeast | Mostly Cloudy | Partly Cloudy |
| June 17 | 62°F17°C | 79°F26°C | 7 mph11 km/h from South | Drizzle | Partly Cloudy |
| June 18 | 68°F20°C | 84°F29°C | 7 mph12 km/h from Southwest | Partly Cloudy | Rain |
| June 19 | 67°F19°C | 79°F26°C | 15 mph25 km/h from West | Drizzle | Mostly Clear |
| June 20 | 63°F17°C | 78°F25°C | 9 mph14 km/h from West | Partly Cloudy | Partly Cloudy |
| June 21 | 64°F18°C | 84°F29°C | 11 mph17 km/h from Southwest | Mostly Cloudy | Thunderstorms |
Yes
Low of 56°F14°C, High of 75°F24°CWind: 6 mph9 km/h
Precipitation: None