UP TO five days of 40-degree heat is about to engulf South Australia, Victoria and western NSW bringing the hottest weather since last summer to Adelaide and Melbourne.
Some inland parts, such as Wudinna, Port Augusta, Renmark, Ivanhoe and Ouyen, will heat to near 45 degrees. Parts of southeastern Tasmania will even reach 35.
Both Adelaide and Melbourne can expect at least one day hotter than 40 degrees, Adelaide can expect three in a row.
For Adelaide and the area to the west the hottest day looks like being Sunday. On Monday the most extreme heat will shift to the east of Adelaide to cover most of Victoria including Melbourne.
Thankfully for most the extreme heat will not coincide with very strong northerly winds, so fire danger will not be as high as it was earlier this season.
However, hot, dry northerlies will reach their peak in SA, Tasmania and Victoria on Monday and in NSW on Tuesday.