Custom Search     Lake Sumner     Can you camp here? Says NM In this lake you can hit upon fine walleye, white bass, bass and catfish. Great pursuits here consist of boating and fishing. Not much precipitation falls here at Lake Sumner. During the month of August you get the most rain around here while January is commonly the driest month. All through the summer months at Lake Sumner highs are generally in the 90's. When the night sets in temperatures plunge down into the     60's. During the wintertime highs are regularly in the 50's with temperatures at Lake Sumner dipping down into the 20's through winter nights.            Map Detailed Map Weather Local weather forecast