Yes
you do need a jacket based on the weather in Waterloo, ON, Canada 1 second ago
Why? Because it's pretty chilly.
58°F14°C & Clear
Wind is 2 mph4 km/h from the N, gusting to 4 mph6 km/h
| July 27 | ||||
| 3am | 58°F14°C | 3 mph4 km/h N | Partly Cloudy | |
| 4am | 57°F14°C | 2 mph4 km/h N | Mostly Clear | |
| 5am | 56°F13°C | 3 mph4 km/h N | Mostly Clear | |
| 6am | 55°F13°C | 2 mph4 km/h N | Mostly Clear | |
| 7am | 57°F14°C | 3 mph4 km/h N | Clear | |
| 8am | 61°F16°C | 2 mph3 km/h N | Clear | |
| 9am | 66°F19°C | 2 mph3 km/h NE | Clear | |
| 10am | 71°F21°C | 2 mph3 km/h S | Clear | |
| 11am | 74°F23°C | 2 mph3 km/h S | Mostly Clear | |
| 12pm | 76°F25°C | 2 mph3 km/h S | Clear | |
| 1pm | 78°F26°C | 3 mph5 km/h S | Mostly Clear | |
| 2pm | 79°F26°C | 4 mph6 km/h S | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 27 | 55°F13°C | 81°F27°C | 3 mph4 km/h from S | Mostly Clear | Clear |
| July 28 | 60°F15°C | 85°F30°C | 5 mph8 km/h from S | Mostly Clear | Clear |
| July 29 | 61°F16°C | 87°F30°C | 5 mph7 km/h from S | Mostly Clear | Partly Cloudy |
| July 30 | 66°F19°C | 84°F29°C | 9 mph14 km/h from S | Drizzle | Thunderstorms |
| July 31 | 67°F19°C | 84°F29°C | 8 mph13 km/h from W | Drizzle | Mostly Clear |
| August 1 | 65°F18°C | 85°F30°C | 5 mph7 km/h from W | Partly Cloudy | Mostly Clear |
| August 2 | 66°F19°C | 86°F30°C | 5 mph7 km/h from SW | Partly Cloudy | Partly Cloudy |
No
Low of 60°F16°C, High of 85°F30°CWind: 5 mph8 km/h
Precipitation: None