An Alberta clipper is coming into the region and bringing with it varying amounts of snowfall.
Environment Canada says an Alberta Clipper, mixed with lake effect snow, could deliver about 5cm of snow to the London area before Friday morning.
Forecasters are warning of poor driving conditions during the morning commute, as strong winds kick up the fallen snow and reduce visibility.
The temperature is also expected to drop Friday, falling to -13C.
OPP are reminding drivers to slow down.