Alberta Transportation says Highway 35 north of High Level is being affected by the fires and smoke, which is reducing visibility.
The province is reporting around 125 fires burning in Alberta, including 37 that are out of control.
An official says no communities are threatened but smoke from these and other fires in the region is drifting over some areas.
Wildfires in the N.W.T. could affect phone and Internet service to people living in Fort Smith and Fort Resolution.
Northwestel says it is advising its customers that it is doing what it can to protect critical telecommunications equipment.