No
you don't need a jacket based on the weather in Waterloo, ON, Canada 1 second ago
76°F24°C & Clear
Wind is 7 mph12 km/h from the East, gusting to 11 mph17 km/h
| September 15 | ||||
| 6pm | 74°F23°C | 8 mph13 km/h East | Clear | |
| 7pm | 71°F21°C | 7 mph11 km/h East | Clear | |
| 8pm | 66°F19°C | 6 mph9 km/h Southeast | Clear | |
| 9pm | 62°F17°C | 5 mph8 km/h East | Clear | |
| 10pm | 60°F16°C | 4 mph6 km/h East | Clear | |
| 11pm | 58°F14°C | 4 mph7 km/h Northeast | Clear | |
| September 16 | ||||
| 12am | 56°F14°C | 4 mph7 km/h Northeast | Clear | |
| 1am | 56°F13°C | 5 mph8 km/h Northeast | Clear | |
| 2am | 55°F13°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 3am | 54°F12°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 4am | 53°F12°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 5am | 53°F12°C | 5 mph8 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 54°F12°C | 78°F25°C | 6 mph9 km/h from East | Mostly Clear | Clear |
| September 16 | 53°F11°C | 78°F25°C | 7 mph11 km/h from East | Partly Cloudy | Mostly Clear |
| September 17 | 51°F11°C | 79°F26°C | 3 mph4 km/h from North | Clear | Clear |
| September 18 | 55°F13°C | 79°F26°C | 8 mph12 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 19 | 53°F12°C | 74°F23°C | 7 mph11 km/h from Northeast | Clear | Clear |
| September 20 | 48°F9°C | 71°F22°C | 11 mph17 km/h from East | Mostly Clear | Partly Cloudy |
| September 21 | 53°F12°C | 79°F26°C | 11 mph17 km/h from South | Partly Cloudy | Partly Cloudy |
Yes
Low of 53°F12°C, High of 78°F26°CWind: 7 mph11 km/h
Precipitation: None