Guinea pigs outside on firework night?

I have 3 guinea pigs and they currently all live outside, i wanted to know if they will be ok tonight with the fireworks? I have pit lots and lots of bedding in for them to hide in and they also have a hutch hugger on, we dont have any neighbours letting off fireworks and there arnt any flashes but we can hear the bangs and noises, do you think they will be okay? PLEASE HELP!