No
you don't need a jacket based on the weather in Hamilton, ON, Canada 1 second ago
76°F25°C & Clear
Wind is 4 mph6 km/h from the West, gusting to 6 mph10 km/h
| July 15 | ||||
| 12am | 76°F24°C | 4 mph6 km/h West | Clear | |
| 1am | 74°F23°C | 4 mph6 km/h West | Clear | |
| 2am | 72°F22°C | 4 mph7 km/h West | Clear | |
| 3am | 71°F22°C | 4 mph7 km/h West | Clear | |
| 4am | 70°F21°C | 4 mph6 km/h West | Clear | |
| 5am | 69°F21°C | 4 mph7 km/h West | Clear | |
| 6am | 68°F20°C | 4 mph7 km/h West | Clear | |
| 7am | 69°F20°C | 3 mph5 km/h West | Clear | |
| 8am | 72°F22°C | 3 mph4 km/h West | Mostly Clear | |
| 9am | 76°F24°C | 2 mph3 km/h West | Mostly Clear | |
| 10am | 79°F26°C | 2 mph3 km/h South | Clear | |
| 11am | 83°F28°C | 2 mph3 km/h South | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 14 | 73°F23°C | 88°F31°C | 3 mph5 km/h from Northeast | Partly Cloudy | Clear |
| July 15 | 68°F20°C | 90°F32°C | 3 mph6 km/h from South | Clear | Clear |
| July 16 | 69°F21°C | 89°F31°C | 5 mph8 km/h from Southwest | Mostly Cloudy | Drizzle |
| July 17 | 68°F20°C | 85°F29°C | 13 mph21 km/h from West | Rain | Drizzle |
| July 18 | 62°F17°C | 75°F24°C | 9 mph15 km/h from Northeast | Mostly Clear | Clear |
| July 19 | 60°F16°C | 80°F27°C | 4 mph6 km/h from Southeast | Partly Cloudy | Thunderstorms |
| July 20 | 68°F20°C | 83°F28°C | 6 mph9 km/h from West | Drizzle | Partly Cloudy |
No
Low of 68°F20°C, High of 90°F32°CWind: 3 mph6 km/h
Precipitation: None