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A high is causing skies to become mostly clear in SA, Vic, NSW & the interior, turning a chilly morning into a mild day. Showers are scattering along the Qld coast & western Tas in onshore winds. Patchy light rain is falling in WA as a trough meets an approaching front.
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Today, 2:10AM UTC
22°C to start spring in Melbourne as warmth spreads east
A burst of warmth will spread across southeastern Australia this week, with a relatively brief spike in temperatures in Melbourne, Adelaide, Hobart and Canberra around the first day of the new season, while Sydney will be unseasonably warm all week. On Tuesday, September 1: Melbourne is predicted to reach 22°C (average Sept maximum 17.3°C). In Adelaide, the mercury should also peak around 22°C (average Sept maximum 18.5°C). Hobart is forecast to reach 19°C but there's a chance the temperature could even tip over the 20-degree mark (average Sept maximum 15.2°C). Canberra is expected to reach 20°C on Tuesday, with maximums of 21°C expected either side of it, both this Monday and again on Wednesday. Since this Monday is the last day of August, it's worth noting that twenty-one degrees is an exceptionally warm winter temperature for the national capital, given that Canberra's average August maximum is just 14.4°C. While Canberra topped the 21-degree mark in August two years ago (21.4°C on August 24, 2024), the previous time it reached 21°C in August was back in 2015. What will cause the warm start to the season? Image: Mean sea level pressure and 850 hPa temperatures predicted for 4 pm (AEST) on Tuesday, September 1, 2026, according to the ECMWF model. Source: Weatherzone. Air circulating anticlockwise around the high pressure system centred over the Tasman Sea will drag relatively warm air from Australia's interior across the southeast. But the warmth will dissipate by Wednesday in Adelaide, Melbourne and Hobart, and by Thursday in Canberra, as cooler air associated with a weakening cold front sweeps in from the southwest. Image: Mean sea level pressure and 850 hPa temperatures predicted for 4 pm (AEST) on Thursday, September 3, 2026, according to the ECMWF model. Source: Weatherzone. Sydney to hit high-20s twice this week, largely unaffected by cooler air further south Of the southeastern capitals, Sydney is the only one that will barely feel the influx of cooler air. The harbour city is expected to reach 26°C on Tuesday to start spring, 27°C on Wednesday, and 26°C again on Thursday before dipping slightly to 23°C on Friday (average September maximum 20.2°C). By the weekend, significant early spring warmth returns, with a maximum around 29°C expected across the city from the western suburbs to the coastal fringe. There's even a chance the city could reach 30°C – a mark that hasn't been recorded in the first week of September since 2020. Dry and sunny for Sydney, showers developing in other SE capitals Image: Predicted rainfall accumulation across SE Australia to 10 am (AEST) on Thursday, September 3, 2026, according to the ECMWF model. Source: Weatherzone. Sydney is the only southeastern capital which is expected to remain dry over the coming week. While Melbourne, Adelaide, Hobart and Canberra should all see at least a few showers across several days as maximums dip back into the teens, Sydney will be protected by the ranges to the west of the city – as often happens in westerly streams in late winter and early spring. READ MORE: Warm start to spring to follow Sydney’s warmest winter on record
30 Aug 2026, 1:24AM UTC
Nearly 300,000 lightning strikes detected across WA this week
Extensive parts of WA’s west, south and remote interior have been impacted by thunderstorm, lightning and heavy rainfall over the past few days. Nearly 300,000 lightning strikes detected across WA Weatherzone’s Total Lightning Network (TLN) detected over 288,000 lightning strikes above Western Australia between Wednesday and Sunday, August 26-30, 2026. Image: Weatherzone’s Total Lightning Network detected nearly 300,000 lightning strikes across WA between Wednesday and Sunday, August 26-30, 2026. Source: Weatherzone. This extensive lightning and thunderstorm activity has been triggered by a broad low pressure trough extending over the state, supported by a slow-moving upper-level low pressure system increasing instability over the last few days. Video: Satellite imagery, radar and lightning detected across WA between Thursday and Sunday, August 27-30, 2026. Source: Weatherzone. As seen in the video above, thunderstorm and lightning activity was most intense on Friday and Saturday, with over 121,000 and 103,000 lightning strikes recorded each day, respectively. Across that 48-hour period, 78% of the nearly 300,000 lightning strikes were detected. Widespread healthy rainfall spreads across agricultural lands Along with prolific wintertime lightning activity, this system tapped into a deep moisture source and drenched the landscape across the South West Land Division of WA, including key agricultural lands. Image: Estimated 4-day rainfall across WA since Wednesday morning, August 26, 2026. Source: Weatherzone. Widespread falls of 20-40mm have been registered over the past 4 days, extending as far north as Geraldton, south to Albany and Esperance, and inland across the Goldfields. Agricultural lands of the Central Wheat Belt and Great Southern regions also received more intense rainfall of 50-100mm over the last few days.
29 Aug 2026, 7:38AM UTC
What's on the forecast for TCS Sydney Marathon 2026?
It looks like it'll be a fabulous race day for all those Sydneysiders who plan on participating in the annual TCS Sydney Marathon tomorrow, Sunday, August 30. There may be a few clouds in the sky when the race starts just before sunrise at 6:15am for elite wheelchair athletes and 6:30am for mass participation at Miller Street, North Sydney, though skies are expected to be mostly sunny. Race start temperature will be a cool 10-11°C, feeling a degree or two chillier than that in light west-northwesterly winds. Down at Juniors Kingsford on Anzac Parade, at about the halfway point of the marathon course, temperatures will rise to about 16°C by 10am under mostly clear skies. By the time the marathon's official cutoff time of 1:30pm rolls around, conditions at the Sydney Opera House finish line are expected to be sunny with a top of 21°C, feeling closer to 19°C in light east-southeasterly winds, just in time for a nice relaxing cool down while admiring the stunning harbour views. Image: Hourly forecast for Sydney, NSW on Sunday, August 30, 2026 on the Weatherzone app. Best of luck to everyone in tomorrow's marathon! And remember, you can stay up to date with the latest Sydney forecasts on the Weatherzone app or at https://www.weatherzone.com.au/nsw/sydney/sydney.