Today's best CD interest rates go as high as 5.02%, but rates are subject to change with Federal Reserve actions.CDs provide fixed interest rates for set periods, offering better yields than high-yield savings accounts but penalties for early withdrawal.Short-term CDs like three-month and six-month options have current average rates of 1.3% and 1.77% respectively.Popular 12-month CDs offer a high 5.02% rate, with a stable average APR of 1.83% for one-year CDs.Two-year CDs offer rates as high as 4.52%, while the average APY for this term is 1.65%.Longer-term CDs like three-year and five-year ones provide rates as high as 4.27% and 4.26% respectively.Jumbo CDs require high minimum deposits but offer competitive rates, with 6-month jumbo CDs at 4.94%.Digital banks often provide better CD rates due to lower costs compared to traditional banks, offering top-of-market yields.CDs typically have minimum deposit requirements, and early withdrawals can result in penalties affecting earned interest.CDs are considered safe investment options with protection from FDIC or NCUA insurance, offering up to $250,000 coverage in case of bank failure.