No
you don't need a jacket based on the weather in Waterloo, ON, Canada 30 minutes ago
60°F16°C & Clear
Wind is 1 mph1 km/h from the Southwest, gusting to 3 mph5 km/h
| September 18 | ||||
| 12am | 59°F15°C | 1 mph2 km/h East | Clear | |
| 1am | 57°F14°C | 4 mph6 km/h Northwest | Clear | |
| 2am | 55°F13°C | 4 mph6 km/h Northwest | Clear | |
| 3am | 54°F12°C | 4 mph6 km/h Northwest | Clear | |
| 4am | 53°F12°C | 4 mph6 km/h Northwest | Mostly Clear | |
| 5am | 52°F11°C | 4 mph7 km/h Northwest | Mostly Clear | |
| 6am | 51°F11°C | 4 mph7 km/h Northwest | Partly Cloudy | |
| 7am | 52°F11°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 8am | 55°F13°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 9am | 61°F16°C | 5 mph7 km/h Northwest | Partly Cloudy | |
| 10am | 68°F20°C | 5 mph9 km/h Northwest | Mostly Cloudy | |
| 11am | 73°F23°C | 6 mph10 km/h Northwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 17 | 47°F9°C | 80°F27°C | 2 mph3 km/h from Northeast | Clear | Mostly Clear |
| September 18 | 51°F11°C | 80°F27°C | 8 mph13 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 19 | 53°F11°C | 71°F22°C | 6 mph10 km/h from North | Mostly Clear | Clear |
| September 20 | 49°F9°C | 68°F20°C | 12 mph19 km/h from East | Mostly Clear | Partly Cloudy |
| September 21 | 52°F11°C | 79°F26°C | 10 mph16 km/h from South | Mostly Cloudy | Cloudy |
| September 22 | 64°F18°C | 73°F23°C | 9 mph14 km/h from Southwest | Rain | Drizzle |
| September 23 | 62°F16°C | 75°F24°C | 7 mph12 km/h from West | Drizzle | Partly Cloudy |
Yes
Low of 51°F11°C, High of 80°F27°CWind: 8 mph13 km/h
Precipitation: 39% rain