Some forecasts show both the "chance of any rain" as well as various percentiles of the expected rainfall amount, eg this one: http://www.bom.gov.au/places/vic

Some forecasts show both the "chance of any rain" as well as various percentiles of the expected rainfall amount, eg this one: http://www.bom.gov.au/places/vic/melbourne/forecast/detailed/ http://www.bom.gov.au/places/vic/melbourne/forecast/detailed...