Firefighters on NSW's Mid North Coast have jumped for joy as torrential rain drenches the fire grounds they have spent weeks defending.

The Leongatha Fire Brigade uploaded the video to social media of their volunteer crew in dancing in Rollands Plains, approximately 40 kilometres north west of Port Macquarie.

The crew had travelled from the South Gippsland Shire in country Victoria to help battle the blazes alongside their NSW counterparts.

The rain comes as locals had been forced out of their homes for two weeks. (Facebook/Leongatha Fire Brigade)

In the video the crew can be seen laughing as they huddle under shelter as rain pours down.

A low-pressure system in the area is slowly moving out to sea, bringing with it torrential rain and potential hail.

According to Leongatha Fire Brigade, this particular crew had been helping cook meals for locals and fire fighters who had been forced from their homes for the past two weeks due to the fires.

The joyous crew have been providing support to firefighters and locals alike. (Facebook/Leongatha Fire Brigade)

Locals could be seen jumping for joy as rain fell. (Facebook/Leongatha Fire Brigade)

"I couldn't be happier for our reprieve. Thank you all for your dedication to your communities," wrote one Facebook user.

"Fantastic. You deserve to dance. Well done to all and enjoy every drop. Long time coming," wrote another.