The temperatures in Guelph in October are quite cold with temperatures between 6°C and 13°C, warm clothes are a must.
You can expect rain for roughly half of the month of October in Guelph. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Please note that Guelph can expect a few days of snow in October.
Our weather forecast can give you a great sense of what weather to expect in Guelph in October 2025.
If you’re planning to visit Guelph in the near future, we highly recommend that you review the 14 day weather forecast for Guelph before you arrive.