Weather map shows Melbourne, Sydney, Adelaide scorch through five-day heatwaves record temperatures

Parts of Australia are set to be hit with five-day heatwaves this weekend – and temperatures will soar to 40C.South-eastern Australia is set to feel an early wave of summer with near record high temperatures sweeping through the country from Wednesday.The hot air mass is building over parts of Western Australia and is due to move through South Australia and Victoria on Wednesday and Thursday, before hitting New South Wales towards the weekend.Forecasters warn that higher temperatures will be accompanied by a higher risk of bush fires. On Friday, parts of Adelaide and Sydney will soar past the 30C mark, while regional areas will see temperatures of 40C.Scroll down for video  A frightening weather map (pictured) shows how Australia is set to scorch through five day heatwaves and record temperatures during a blistering spring, with the purple indicating temperatures of 38C-42C South-eastern Australia is set to feel an early wave of summer with ‘near record high temperatures’ sweeping through the country this weekend. Pictured, swimmers at Bondi BeachSydneysiders will see a warm long weekend with temperatures set to reach 29C on Friday, while reaching 34C in the city’s west. Temperatures on Saturday are expected to drop dramatically to 21C before jumping back up to a warm 26C for Sunday.Inland areas including the nation’s capital, Broken Hill, Mallee and Port Augusta will endure five-day long heatwaves.Bureau of Meteorology duty forecaster Rose Barr told Daily Mail Australia western parts of the state will see temperatures as high as 37C and 38C by Sunday. Those levels would be 10C higher than the average for this time of year. Adelaide is also set to endure a scorcher, with 31C forecast for Friday, while rural parts of South Australia will reach 40C.Melbourne is expected to hit 25C on Wednesday with the temperature on the march to 27C on Thursday, a dip on Friday before nudging back to 27C on Saturday. Parts of regional Victoria are set to feel the early heat with a forecast for one of the hottest October days on record.Mildura, in the state’s north, is expected to hit 31C on Wednesday before hovering at 34C for the next two days and leaving residents to swelter through a top of 38C on Saturday. The Bureau of Meteorology’s says all of the country’s mainland is ‘highly likely’ to exceed average temperatures for October to December  A red-hot weather map shows how Australia is set to sizzle through a blistering spring (pictured)That’s about 15C above average for the start of the month, senior meteorologist Tom Delamotte said.But it’s not the first time Mildura’s had a 38C day so early in the year.’The last time it was this hot was 38C on October 6, 2015. So it certainly has happened before but we don’t see it too often, particularly in the first week of October, it is usually at the end of October when we see those temperatures,’ Mr Delamotte said.Hobart will also get a bit of the warmer weather with a peak of 27C expected on Thursday, but temperatures will once again drop to 17C on Friday.Brisbane will remain in the mid-twenties, with the forecast expected to be cloudy and 25C on Wednesday before rising to 31C on Saturday.Darwin will remain hot with multiple days expected at 35C, while Perth is remaining relatively warm with 25C on Thursday before dropping to an average of 20C over the weekend.  The only parts of Australia not to see a 75 per cent or higher likelihood of exceeding the average are small pockets of South Australia, Victoria and Tasmania, the map shows  More concerning still is the prediction the raised thermostat will be accompanied by a high fire danger and early heatwaves in the first months of summerDr Liz Hanna, chairwoman of the World Federation of Public Health Associations’ environmental health working group, told ABC News heat stress is one of the nation’s deadliest natural hazards.She said heat-related deaths in Australia climbed into the thousands every year on average, but little was being done about it.The BoM forecast comes after the New South Wales and Queensland border saw a horror month of bushfires during September.More than 150 firefighters are still fighting five blazes burning in the region.The BoM’s official forecast is equally severe in terms of rainfall outlook, with virtually the entirety of Australia likely to see less rainfall than average. The BoM’s official forecast is equally severe in terms of rainfall outlook (pictured), with virtually the entirety of Australia likely to see less rainfall than averageIn Victoria, South Australia and New South Wales the likelihood is as much as 80 per cent, bringing more bad news for the latter which is already 94 per cent in drought. Exacerbating the dry conditions is what is called a negative Southern Annular Mode, which this year will bring westerly winds over the centre of Australia and reduce rainfall.’This means eastern Australia is likely to see more dry and warm air off the inland and less warm air off the Tasman Sea,’ BoM climatologist Andrew Watkins said.The forecast follows a disastrous start to the nation’s bushfire season, which was brought forward to August this year – well before the traditional October start date.NSW Rural Fire Service said on Monday it could take months to put out five fires in the states north currently raging in Armadale and Tenterfield in the state’s north.’Unfortunately with the winds that we’ve had, that has seen a number of spot fires and embers move outside of our containment lines and that’s the hardest part for firefighters at the moment,’ an RFS spokesman said. Increasing the dry conditions is what is called a negative Southern Annular Mode, which this year will bring westerly winds over the centre of Australia and reduce rainfallFIVE DAY WEATHER FORECAST IN YOUR CITY   SYDNEY WEDNESDAY Min 12. Max 24. Sunny.THURSDAY: Min 14. Max 26.  Sunny.FRIDAY: Min 16. Max 29. Sunny.SATURDAY: Min 15. Max 22. Cloudy.SUNDAY: Min 15. Max 26. Cloudy.BRISBANE:   WEDNESDAY Min 15. Max 25. Showers.THURSDAY: Min 13. Max 26. Sunny.FRIDAY: Min 13. Max 26. Mostly sunny.SATURDAY: Min 14. Max 30. Sunny.SUNDAY: Min 16. Max 29. Sunny. ADELAIDE:   WEDNESDAY Min 17. Max 29. Windy.THURSDAY: Min 12. Max 24. Cloudy.FRIDAY: Min 14. Max 33. Partly cloudy.SATURDAY: Min 20. Max 32. Cloudy.SUNDAY: Min 14. Max 20. Showers.PERTH:   WEDNESDAY Min 9. Max 23. Sunny.THURSDAY: Min 11. Max 22. Showers.FRIDAY: Min 11. Max 19. Showers.SATURDAY: Min 8. Max 20. Cloudy.SUNDAY: Min 9, Max 21. Cloudy.  MELBOURNE:    WEDNESDAY Min 10. Max 25. Sunny.THURSDAY: Min 14. Max 27. Sunny.FRIDAY: Min 12. Max 21. Partly cloudy.SATURDAY: Min 12. Max 27. Cloudy.SUNDAY: Min 16, Max 27. Cloudy.CANBERRA:  WEDNESDAY: Min 2. Max 25. Sunny.THURSDAY:Min 5. Max 27. Sunny FRIDAY: Min 6. Max 29. Sunny.SATURDAY: Min 8. Max 27. Cloudy.SUNDAY: Min 8. Max 28. Sunny. DARWIN:   WEDNESDAY Min 23. Max 35. Sunny.THURSDAY: Min 23. Max 34. Sunny.FRIDAY: Min 23. Max 35. Sunny.SATURDAY: Min 23. Max 35. Sunny.SUNDAY: Min 23. Max 34. Sunny. HOBART: WEDNESDAY: Min 5. Max 19. Cloudy.THURSDAY: Min 9. Max 26.Sunny.FRIDAY: Min 11. Max 17. Shower or two.SATURDAY: Min 6. Max 18. Showers.SUNDAY: Min 9. Max 22. Showers.  Source: Bureau of Meteorology