We had so much rain today there was a flash flood watch and have been having above average rain for the past year. AnywAy, I came home from work to find my water pressure was low sometimes not coming out at all for a minute or two then coming out strong and gradually none at all.
Are you on a well? If so, maybe your pressure tank or pressure switch has gone bad. If on City water, has the City been doing water line work? Another possibility is that you have a break in your main water line. A licensed plumber can find and repair that for you.