Freddie Mac says the average rate on a 30-year mortgage fell to 6.77% this week, the lowest level since mid-March

Freddie Mac says the average rate on a 30-year mortgage fell to 6.77% this week, the lowest level since mid-March

TYSONS, Va. -- Freddie Mac says the average rate on a 30-year mortgage fell to 6.77% this week, the lowest level since mid-March.