Yes
you do need a jacket based on the weather in Waterloo, ON N2J 2Z2, Canada 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
57°F14°C & Clear
Wind is 6 mph10 km/h from the North, gusting to 14 mph23 km/h
| July 21 | ||||
| 4am | 57°F14°C | 6 mph10 km/h North | Clear | |
| 5am | 56°F13°C | 6 mph9 km/h North | Clear | |
| 6am | 55°F13°C | 6 mph9 km/h North | Clear | |
| 7am | 56°F14°C | 5 mph9 km/h North | Clear | |
| 8am | 59°F15°C | 7 mph12 km/h North | Clear | |
| 9am | 62°F17°C | 8 mph13 km/h Northeast | Clear | |
| 10am | 65°F18°C | 7 mph12 km/h Northeast | Clear | |
| 11am | 67°F20°C | 8 mph12 km/h North | Clear | |
| 12pm | 69°F21°C | 8 mph12 km/h North | Clear | |
| 1pm | 71°F22°C | 8 mph13 km/h North | Clear | |
| 2pm | 72°F22°C | 8 mph12 km/h North | Mostly Clear | |
| 3pm | 73°F23°C | 8 mph12 km/h North | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 21 | 55°F13°C | 74°F23°C | 8 mph12 km/h from North | Clear | Mostly Clear |
| July 22 | 52°F11°C | 77°F25°C | 4 mph6 km/h from East | Mostly Clear | Partly Cloudy |
| July 23 | 57°F14°C | 85°F29°C | 8 mph13 km/h from South | Partly Cloudy | Mostly Clear |
| July 24 | 68°F20°C | 90°F32°C | 13 mph20 km/h from Southwest | Mostly Clear | Partly Cloudy |
| July 25 | 68°F20°C | 84°F29°C | 9 mph15 km/h from Northwest | Mostly Cloudy | Partly Cloudy |
| July 26 | 63°F17°C | 85°F29°C | 5 mph8 km/h from Southeast | Partly Cloudy | Mostly Cloudy |
| July 27 | 66°F19°C | 87°F30°C | 6 mph10 km/h from West | Partly Cloudy | Mostly Clear |
Yes
Low of 53°F12°C, High of 77°F25°CWind: 4 mph6 km/h
Precipitation: None