A mix of sun and cloud is expected during the day, with a 60 per cent risk of showers in the afternoon with risk of a thunderstorm.
Daytime high of 27 degrees Celsius will dip to a low of 19 degrees in the evening.
A 40 per cent chance of showers is expected in the evening, with chance of a thunderstorm.
For more weather and our 5-day forecast, click on the GuelphToday weather page.