No
you don't need a jacket based on the weather in Waterloo, ON N2J 2Z2, Canada 1 second ago
70°F21°C & Cloudy
Wind is 6 mph10 km/h from the North, gusting to 12 mph20 km/h
| August 17 | ||||
| 10am | 71°F22°C | 9 mph14 km/h North | Mostly Cloudy | |
| 11am | 73°F23°C | 9 mph15 km/h North | Mostly Cloudy | |
| 12pm | 73°F23°C | 10 mph17 km/h North | Mostly Cloudy | |
| 1pm | 75°F24°C | 13 mph20 km/h North | Mostly Cloudy | |
| 2pm | 77°F25°C | 13 mph20 km/h North | Partly Cloudy | |
| 3pm | 77°F25°C | 12 mph20 km/h North | Mostly Clear | |
| 4pm | 77°F25°C | 12 mph20 km/h North | Mostly Clear | |
| 5pm | 76°F24°C | 12 mph19 km/h North | Mostly Clear | |
| 6pm | 74°F24°C | 11 mph18 km/h North | Mostly Clear | |
| 7pm | 72°F22°C | 11 mph17 km/h North | Clear | |
| 8pm | 69°F21°C | 9 mph15 km/h North | Clear | |
| 9pm | 66°F19°C | 9 mph14 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| August 17 | 60°F15°C | 77°F25°C | 10 mph16 km/h from North | Drizzle | Clear |
| August 18 | 53°F12°C | 72°F22°C | 10 mph15 km/h from East | Mostly Clear | Mostly Clear |
| August 19 | 55°F13°C | 76°F24°C | 7 mph12 km/h from Southeast | Mostly Cloudy | Drizzle |
| August 20 | 64°F18°C | 76°F25°C | 6 mph10 km/h from Northeast | Drizzle | Partly Cloudy |
| August 21 | 60°F16°C | 78°F26°C | 9 mph15 km/h from Northeast | Mostly Clear | Clear |
| August 22 | 58°F15°C | 82°F28°C | 6 mph9 km/h from South | Mostly Clear | Mostly Clear |
| August 23 | 62°F17°C | 80°F27°C | 10 mph16 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 53°F12°C, High of 73°F23°CWind: 10 mph15 km/h
Precipitation: None