How soon might a squeaky serpentine belt finally break?

It's not a really bad squeaking, been going on for a month or two. Can't afford repairs now. How will I know if and when it does break?
It's a 2000 Honda Accord with 130K miles if that matters.

Well, how long is a piece of string?

You have a lot to consider. Is/was the Honda maintained properly? It might need a belt. Is it worn out (shabby, hardened, stretchy, or frayed), anywhere along it's length? You'll know when it breaks, all the idiot lights come on, and the engine usually stops.

At @ 130K most engines need to have the timing belt replaced. That's much more critical than the serpentine belt! Check to see if the engine is in need of the timing belt… A timing belt is gonna cost you some big $.

If only the serpentine belt is worn, you and a friend (who knows their way with tools), can replace it yourself. If the belt is just squeaky, an old hot rodder trick is to spray some WD40 along it's length and the noise goes away…

Murphy's Law:

"If something can go wrong- it will go wrong. At the worse possible time."

That's why we have vehicle maintenance…