North Bay 69 was discovered on July 8 in Strathcona Township, 6 km (3.7 mi) southeast of the town of Temagami.

[2] It was approximately 15 hectares (37 acres) in size and posed an imminent threat to areas in front of the wildfire's path, resulting in 20 homes being evacuated south of the town between Finlayson Point Provincial Park and Jessie Lake.

[2] North Bay 69 had grown 100 hectares (250 acres) in size by July 10 and the town of Temagami was still on a voluntary evacuation notice.

[1][2] Inaccurate information regarding the dangers posed to Temagami by North Bay 69 in early July 2018 had a devastating effect on businesses in the community throughout the summer season.

In August, Darren Gareh, owner of Lakeland Airways and the Three Buoys houseboat operation, said "at this time of the year I would normally have 15 flights a day.