Kingston, Ontario, Canada
October in Kingston
The average temperature in October is 9°C(48°F), with an average high of 13° C(55°F) and an average low of 4° C(40°F). The average rainfall is about 86 mm (3.4 inches), October is usually moderately sunny with an average of 13 rain days in the month, so some wet weather clothes are appropriate.
To check the weather closer to the time of the conference you can consult Environment Canada’s website.
Tourism in Kingston
More information available here.