Road crews are urging drivers to use extreme caution if the commute involves side roads throughout the area.
Nechako Northcoast Construction and Billabong Road and Bridge Maintenance says that the rain falling on the snow packed roads is making them very icy.
The areas include Terrace, Kititmat, Kitwanga, Smithers, Moricetown and through the Nass Valley.
The companies note they continue to sand, salt, and plow the roads but the rain is causing the material to have little impact.
They say conditions should improve when the rain moves out of the area.