It's nothing new for the children of northwestern Ontario, a cool and wet Halloween night is being forecast.
Environment Canada Meteorologist Gerald Cheng had the details.
"Halloween, of course everyone is thinking about what they should be wearing under their costume. It's important to dress warm as temperatures will be hovering around zero," he said.
Cheng said temperatures are not that far off from seasonal, but it's still cold for trick or treating.
He also said we could be getting some snow tonight.
"If we get a few flurries, it's probably less then 2 cm. It's very light however, it's going to be cold. Winds are around 20 km per hour so, that makes it feel quite raw. Especially for this time of year," he said.
Make sure to bundle up under your costume.