Monday 28 November 2022 04:53 AM Sydney, Melbourne, Perth, Brisbane weather trends now More extreme weather is on the way with sizzling temperatures on one side of the country as damaging storms and hail wreck further havoc on the other. As Perth gears up for a 37C scorcher on Tuesday two days out from the start of summer, Australia's east coast will be smashed by more wild conditions as the ongoing flood crisis in New South Wales entered its 75th day. Destructive thunderstorms with large hailstones are headed for parts of the state, as regional towns could remain cut off by floodwaters for up to a month, with stranded residents relying on food flown in by helicopter. A severe storm warning has been issued for large swathes of NSW and Queensland after thunderstorms battered Sydney, the Central Coast and Wollongong on Sunday night. It's been a cool spring for the six capitals on Australia's east coast and in south-east, due to frequent rain events and and unseasonably active cold fronts from the Southern Ocean. Western Australia will record its hottest day of the season on Tuesday while temperatures in Australia's south-east remain in the 20s Both the Sydney and Melbourne CBDs are yet to record a 30C-plus day this season, according to Weatherzone. Both capital cities average at least four 30C-plus days on average each spring. In the nation's capital which usually records at least six 30C-plus spring days, the highest temperature recorded in Canberra was 26.8C on November 12. Adelaide has hit 32C three times in November while Hobart reached a seasonal high of 28.1C on November 10. Over in the west, the Perth's hottest spring day recorded last week will be exceeded on Tuesday when the mercury hits 37C. The heatwave will linger around on Wednesday with a top of 35C before temperatures plummet by 10C overnight. Western Australia is getting an early taste of summer as temperatures edge towards 40C Perth (pictured) is set to hit 37C on Tuesday and will remain a humid 35C on Wednesday before temperatures drop On the other side of the country, an unstable airmass could lead to large hail, heavy rainfall, flash flooding and damaging winds to part of NSW on Monday afternoon, the Bureau of Meteorology has warned. The warning area includes Port Macquarie on the coast, Kempsey and Comboyne, and extends west to Walcha, Uralla, Armidale and Barraba. 'Thunderstorms will become more active across parts of the Mid North Coast, Northern Tablelands and Northern Rivers this afternoon. Strong winds, large hail and heavy bursts of rain are possible,' a Bureau of Meteorology alert states. The NSW SES received 100 calls for help in the 24 hours up to Monday morning. Almost a third were for storm damage across Sydney on Sunday night- mostly for trees or branches falling on homes and driveways. Some flood-ravaged NSW communities will remain cut off for weeks as the flood crisis continues. Pictured are Sophie Burge and neighbour Cameron Tweed moving sheep to higher ground near Deniliquin in south-western NSW There are 68 flood warnings across NSW - 12 of them at emergency level. The SES flood assistance effort remains focused on the western NSW town of Euabalong where the Lachlan River has isolated the town. Moderate to major flood warnings remain in place for seven rivers across the state. Euabalong publican Neil Quinn said the town last week stared down the swollen river with a hastily-built levee bank holding back floodwaters. 'I don't know how we did it, but we stopped the river,' Mr Quinn told AAP on Sunday. It followed a tense week when the town's original flood bank began to fail and evacuation orders were issued. Mr Quinn said the town would be relying on helicopters for supplies for at least a month. The SES is also focused on the towns of Hay, Balranald, Brewarrina, Bourke and downstream towns, Torrumbarry, Barham, Boundary Bend and Moulamein. The clean-up job has only just started in Forbes (pictured) in central-west NSW as the state's flood crisis enters its 75th day Four day forecast in your city PERTH Monday: Sunny.Max31 Tuesday: Sunny.Min19Max37 Wednesday: Partly cloudy.Min23Max35 Thursday: Cloudy.Min17Max26 ADELAIDE Monday:Cloudy.Max20 Tuesday: Partly cloudy.Min12Max21 Wednesday: Mostly sunny. Min11Max24 Thursday: Sunny.Min12Max26 MELBOURNE Monday: Partly cloudy.Max19 Tuesday: Partly cloudy.Min12Max19 Wednesday: Partly cloudy. Min10Max20 Thursday: Shower or two. Min12Max20 HOBART Monday: Shower or two developing.Max17 Tuesday: Cloudy.Min7Max17 Wednesday: Partly cloudy.Min9Max20 Thursday: Cloudy.Min9Max16 CANBERRA Monday: Partly cloudy.Max23 Tuesday: Mostly sunny.Min7Max24 Wednesday: Partly cloudy.Min10Max24 Thursday: Shower or two developing.Min10Max22 SYDNEY Monday: Shower or two.Max23 Tuesday: Sunny.Min15Max24 Wednesday: Partly cloudy.Min15Max23 Thursday: Partly cloudy. Min16Max24 BRISBANE Monday: Showers. Possible storm. Max32 Tuesday: Shower or two. Possible storm. Min21Max32 Wednesday: Rain increasing. Min20Max25 Thursday: Rain. Min17Max22 DARWIN Monday: Showers. Possible storm.Max33 Tuesday: Showers. Possible storm.Min25Max32 Wednesday: Showers. Possible storm. Min25Max33 Thursday: Partly cloudy. Min25Max36 All rights reserved for this news site (dailymail) and under his responsibility