Weather bureau senior meteorologist Dean Stewart says a cool change should pass through Melbourne between 11am and midday, bringing some heavy rain with it.
It’s 29.3 degrees outside at the moment, but once the change blows in from the west temperatures are expected to drop to the low-mid 20s, he said. There’s also a chance of thunderstorms and heavy rain, with at least 20 millimetres and maybe as much as 50 millimetres expected for some parts of Melbourne.
But while there is some dust in the atmosphere at the moment, it’s not going to be a repeat of last week, when the rains were accompanied by a layer of orange dust.
“We’re not expecting a dust storm in Melbourne,” Mr Stewart said, although he added that some light rainfall overnight would have given cars parked outdoors a light dusting.