Temperatures forecast by Bureau of Meteorology to reach 39C in the CBD as rain and damaging wind gusts up to 130km/h expected along Victoria’s south-west coast

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The weather bureau has forecast a “blistering day” for Sydney on Wednesday, with record-breaking heat shifting towards the east coast, while damaging winds whip through southern states.

On Tuesday, both New South Wales and Queensland recorded their hottest-ever October temperatures, the highest since records began in 1910, according to the Bureau of Meteorology.