Lake Keowee Real Estate News – Lake Keowee homes for sale – Lake Keowee News – Lake Keowee Waterfront property for sale – Lake Keowee Waterfront Real Estate for Rent – WASHINGTON – The average rate on the 30-year fixed mortgage fell to a record 3.91 percent this week, the third time this year that rates have hit new lows. Freddie Mac said Thursday that the average on the 30-year home loan fell from 3.94 percent the previoius week. The 3.91 percent rate is the lowest average for long-term fixed mortgages on records dating to the 1950s….