You've probably heard the news that the Federal Reserve has been raising its benchmark federal funds rate. The Fed doesn't directly control consumer interest rates, but changes to the federal funds rate (which is the rate banks use to lend funds to each other overnight within the Federal Reserve system) often affect consumer borrowing costs.
Forms of consumer credit that charge variable interest rates are especially vulnerable, including adjustable rate mortgages (ARMs), most credit cards, and certain private student loans. Variable interest rates are often tied to a benchmark (an index) such as the U.S. prime rate or the London Interbank Offered Rate (LIBOR), which typically goes up when the federal funds rate increases.
Although nothing is certain, the Fed expects to raise the federal funds rate by small increments over the next several years. However, you still have time to act before any interest rate hikes significantly affect your finances.