Warner is a village in Alberta, Canada. It is surrounded by the County of Warner No. 5, approximately 65 km south of Lethbridge. Warner is a farming community. Warner is situated at the intersection of Highway 4 and Highway 36, about 38 km north of the Montana border and Interstate 15. Warner's nearest neighbours are the towns of Stirling and Milk Ri…Warner is a village in Alberta, Canada. It is surrounded by the County of Warner No. 5, approximately 65 km south of Lethbridge. Warner is a farming community. Warner is situated at the intersection of Highway 4 and Highway 36, about 38 km north of the Montana border and Interstate 15. Warner's nearest neighbours are the towns of Stirling and Milk River.