Melbourne's minimum warmer than maximumBob Neil, Monday September 1, 2014 - 17:37 EST
Overnight, Melbourne experienced very warm temperatures under a blanket of cloud ahead of a cold front.
After Sunday's maximum of 21 degrees, temperatures remained very warm into Sunday night. At midnight, the mercury was still sitting at around 18 degrees before gradually cooling to 15 degrees by 9am.
Persistent cloud with this cold front has prevented heating over Victoria for much of today. As a result, the temperatures only continued to drop after the sun came up.
By 3pm, Melbourne had steadily cooled to 12 degrees, six degrees cooler than it was at midnight.
As this front continues to move east, an unstable and cold airmass will linger keeping both daytime temperatures and overnight temperatures close to average for the next few days.
© Weatherzone 2014
More breaking news
Parts of Victoria, Tasmania and South Australia could be lashed by storms and damaging winds on Thursday as a cold front sweeps across Australia's southeast.
It is storm season in Australia and, while being struck by lightning is considered a rare occurrence, there are several steps people can take to keep safe.
Storm-weary parts of southeast Queensland and northeast New South Wales are preparing for another bout of wild weather today.