What could be causing my Ford Focus to overheat?

I've noticed that my Ford Focus has been running hotter than usual and I'm worried that it might be overheating. It seems to happen more often when I'm driving at higher speeds. Does anyone have any suggestions as to what could be causing this issue?

It could be a problem with your radiator or cooling system. I recommend taking it to a mechanic to have it checked out.

Check your coolant levels and make sure they're topped up. Low coolant can cause overheating.