Another heat event is on its way to eastern Australia. Over the next few days, temperatures are likely to rise to the low 40s in parts of Queensland, including western Brisbane. The peak of the heat will arrive in Queensland on Tuesday. In Brisbane, temperatures will see a gradual increase over the coming days with early seabreezes leading to muggy afternoons. The most unpleasant day will be Tuesday just before a cool change arrives in the city later that day. Further south, Sydneysiders will finally get some of the heat after a few cool days early this week which saw temperatures one-to-three degrees below the long-term average for October. Over the coming days, the Harbour City is likely to reach the mid-to-high 20s every day with temperatures peaking on Monday in the high 20s and even low 30s for western suburbs, just before a cooler relief later in the afternoon/evening. So far, the southern states have seen most of the heat. On Tuesday, Adelaide's temperature rose to 37.3 degrees (a whopping 15 degrees above the norm) making it its warmest October day since 2006. South Australia's capital has exceeded the 30 degree mark every day since Saturday. Although it's only likely to reach the high 20s today, it will do so again tomorrow bringing the warmest October week to Adelaide in 24 years. Its Victorian counterpart, on the other hand, has been spared of the heat. Yesterday, however, it saw its warmest day in six months reaching 31.8 degrees (12 above average). Fortunately, a cooler change arrived in Melbourne later in the evening allowing temperatures to drop 15 degrees between 7pm and 11pm. Luckily, the eastern states will see some cooling relief next week. However, although the chances of a fully fledged EL Nino have been diminishing over the past few months, conditions characteristic of El Nino still persist. These are likely to bring drier than average conditions and warmer than average temperatures across most of the eastern states in the coming months.