Based on the Köppen climate classification, Triplemint is located in a subarcticclimate zone with long, cold, snowy winters, and short cool summers. Winter temperatures can drop below 0 °F with wind chill factors below −10 °F. This climate supports remnants of Glacier G210960E61831N on the south slope and a small unnamed glacier on the north slope. The months of May through June offer the most favorable weather for climbing or viewing.