Yes
you do need a jacket based on the weather in Guelph, ON, Canada 1 second ago
Why? Because it's quite chilly.
49°F10°C & Cloudy
Wind is 3 mph5 km/h from the S, gusting to 7 mph11 km/h
| May 10 | ||||
| 11pm | 49°F10°C | 3 mph5 km/h S | Partly Cloudy | |
| May 11 | ||||
| 12am | 47°F9°C | 3 mph5 km/h S | Mostly Clear | |
| 1am | 45°F7°C | 4 mph6 km/h S | Clear | |
| 2am | 44°F7°C | 4 mph6 km/h S | Clear | |
| 3am | 43°F6°C | 3 mph5 km/h S | Mostly Clear | |
| 4am | 41°F5°C | 4 mph6 km/h S | Partly Cloudy | |
| 5am | 41°F5°C | 4 mph6 km/h S | Mostly Cloudy | |
| 6am | 41°F5°C | 4 mph7 km/h S | Cloudy | |
| 7am | 43°F6°C | 4 mph7 km/h S | Cloudy | |
| 8am | 47°F8°C | 6 mph10 km/h S | Cloudy | |
| 9am | 50°F10°C | 8 mph13 km/h S | Cloudy | |
| 10am | 52°F11°C | 10 mph16 km/h S | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 10 | 44°F6°C | 59°F15°C | 4 mph6 km/h from NE | Mostly Cloudy | Partly Cloudy |
| May 11 | 41°F5°C | 54°F12°C | 10 mph16 km/h from S | Rain | Drizzle |
| May 12 | 43°F6°C | 62°F17°C | 6 mph10 km/h from NW | Mostly Cloudy | Drizzle |
| May 13 | 48°F9°C | 67°F20°C | 11 mph18 km/h from SW | Rain | Rain |
| May 14 | 50°F10°C | 63°F17°C | 5 mph8 km/h from W | Rain | Mostly Cloudy |
| May 15 | 47°F8°C | 69°F21°C | 9 mph15 km/h from NE | Mostly Clear | Clear |
| May 16 | 44°F7°C | 70°F21°C | 5 mph8 km/h from E | Partly Cloudy | Mostly Cloudy |
Yes
Low of 41°F5°C, High of 55°F13°CWind: 10 mph16 km/h
Precipitation: 57% rain