The temperatures in Orillia in October are quite cold with temperatures between 42°F and 55°F, warm clothes are a must.
You can expect rain for roughly half of the month of October in Orillia. 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 Orillia can expect a few days of snow in October.
Our weather forecast can give you a great sense of what weather to expect in Orillia in October 2025.
If you’re planning to visit Orillia in the near future, we highly recommend that you review the 14 day weather forecast for Orillia before you arrive.
Temperatures
55° / 42°
Rainy Days
9
Snowy Days
2
Dry Days
21
Rainfall
5.43
in
Sun Hours
4.3
Hrs
