Temperatures were due to cool off for Wednesday 's play but by the end of the week the thermometer will be back up to 37 degrees in Melbourne , according to Jenny Harrison from the CNN Weather Center . Record temperatures hit Australia during tennis tournament in Sydney . Stifling heat of 41.4 degrees make conditions uncomfortable for players . World No . 4 - The temperature is expected to reach 42.6 degrees on Saturday, with a high of 43.8 degrees forecast by the Bureau of Meteorology. Monday confirmed by Australia Bureau of Meteorology as hottest since records began .
Record temperatures hit Australia during tennis tournament in Sydney . Stifling heat of 41.4 degrees make conditions uncomfortable for players . World No . 4 - The temperature is expected to reach 42.6 degrees on Saturday, with a high of 43.8 degrees forecast by the Bureau of Meteorology. Monday confirmed by Australia Bureau of Meteorology as hottest since records began .