Yes
you do need a jacket based on the weather in Waterloo, ON, Canada 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
57°F14°C & Clear
Wind is 6 mph9 km/h from the SE, gusting to 12 mph20 km/h
| May 2 | ||||
| 11pm | 57°F14°C | 6 mph10 km/h SE | Clear | |
| May 3 | ||||
| 12am | 55°F13°C | 6 mph9 km/h SE | Mostly Clear | |
| 1am | 53°F12°C | 6 mph9 km/h SE | Mostly Cloudy | |
| 2am | 52°F11°C | 5 mph8 km/h SE | Mostly Cloudy | |
| 3am | 52°F11°C | 6 mph10 km/h E | Mostly Cloudy | |
| 4am | 51°F11°C | 6 mph9 km/h E | Mostly Cloudy | |
| 5am | 52°F11°C | 6 mph9 km/h E | Mostly Cloudy | |
| 6am | 52°F11°C | 6 mph10 km/h E | Cloudy | |
| 7am | 52°F11°C | 6 mph9 km/h E | Cloudy | |
| 8am | 54°F12°C | 6 mph9 km/h E | Cloudy | |
| 9am | 56°F13°C | 6 mph10 km/h E | Cloudy | |
| 10am | 59°F15°C | 7 mph11 km/h E | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 2 | 46°F8°C | 71°F22°C | 5 mph8 km/h from NW | Mostly Clear | Partly Cloudy |
| May 3 | 51°F11°C | 68°F20°C | 6 mph10 km/h from E | Rain | Drizzle |
| May 4 | 53°F12°C | 67°F20°C | 10 mph15 km/h from SE | Cloudy | Drizzle |
| May 5 | 50°F10°C | 67°F20°C | 9 mph15 km/h from SW | Drizzle | Partly Cloudy |
| May 6 | 43°F6°C | 69°F20°C | 5 mph7 km/h from NW | Partly Cloudy | Mostly Clear |
| May 7 | 43°F6°C | 68°F20°C | 7 mph12 km/h from E | Partly Cloudy | Rain |
| May 8 | 49°F9°C | 71°F22°C | 10 mph17 km/h from SW | Drizzle | Mostly Cloudy |
Yes
Low of 51°F11°C, High of 68°F20°CWind: 6 mph10 km/h
Precipitation: 48% rain