We’re in for a week of changeable autumn weather with high temperatures on Tuesday giving way to rain and cooler conditions.
Sydney Airport had reached 34.7 degrees at 2.30pm while at Lucas Heights at the same time it was 33.2 degrees and 33.9 at Bankstown.
The relief from the region’s soaring temperatures today will come overnight, bringing maximum temperatures down to the mid 20s for the rest of the week.
The weather is likely to become "quite eventful", with "the potential for severe thunderstorms" from Thursday onwards said the Bureau of Meteorology's Zhi-Weng Chua.
But weather forecasting models are showing differing amounts of rainfall across NSW making it hard to predict where the rain will fall, Weatherzone meteorologist Craig McIntosh said.
It's "umbrella weather", he said.
Forecasts vary between the Bureau and Weatherzone, but predict up to 8 millimetres of rain on Wednesday and up to 20mm on Thursday and Friday, with similar conditions over the weekend.
Those in Sydney can "assume you'll get wet at some point," Mr McIntosh said.
Australia has just sweated through the hottest summer on record, but autumn is unlikely to offer much relief.
BOM's seasonal outlook shows the season is likely to be warmer and drier than average.
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