A low pressure system is forecast to develop off the coast of Perth on Tuesday, bringing with it a band of rain set to fall across the south west of Western Australia .
National weather: Weekend rain in NSW, QLD, Thunderstorms, flood warning, Powerful surf theaustralian.com.au - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from theaustralian.com.au Daily Mail and Mail on Sunday newspapers.
A low intensity heatwave affecting parts of New South Wales, South Australia, Western Australia and Victoria on Tuesday is expected to moderate towards the end of the week.