Custom Search     Franklin D Roosevelt Lake     Franklin D Roosevelt Lake is a lovely 128 square mile lake featuring a shoreline of 630 miles. Around Franklin D Roosevelt Lake you don’t get a lot of precipitation. The month of December is the wettest with most of the snow; July is the month with the least moisture. Summer at Franklin D Roosevelt Lake comes with high temperatures in the 80's. Once the sun is down it dips down to the 50's. Throughout the wintertime the highs are mostly in the 30's, and during the dark hours in the wintertime at Franklin D Roosevelt Lake temperatures fall to the 20's.          Map Detailed Map Marinas Marinas on or near Franklin D Roosevelt Lake Weather Local weather forecast