Forecasters expect storms to hit Brisbane later today with flash flooding anticipated.
Predicted storms and showers failed to materialise around the city yesterday but heavy cloud cover did keep conditions uncomfortable.
Weatherzone senior meteorologist Brett Dutschke said the city was sitting at 82 per cent humidity just before 6pm yesterday – a high figure for so late in the day, especially considering rain had failed to fall.
The overnight temperature was expected to not drop below 22.
The humid conditions are likely to precede storms today, with Mr Dutschke saying a later morning or early afternoon event was 60 per cent likely.
Any storms are likely to bring flash flooding.
"Storms tomorrow are highly likely to lead to at least brief flash flooding given that some storms will bring an intensity of 20 millimetres to 40 millimetres in about an hour," he said last night.
"Given the ground is saturated anyway that water is really going to run across the ground quite quickly."
Mr Dutschke said conditions would remain cloudy today and into the weekend with just a few brief peaks of sunshine.
Although a few showers were hovering around the boundaries of the Brisbane area, he said only a few spots of light rain were expecting overnight and this evening. He said nothing more than 10 millimetres was expected.
Widespread 20-40 millimetre falls are expected.
"The next best chance of getting a decent heavy shower will be [in the] morning from 6am through to the mid-afternoon," he said.
"These north easterly winds will begin to merge with the south easterlies and that area of merging winds should be about Brisbane during [the] morning and through to the afternoon."
The reprieve from rain yesterday was not enough to avoid the cancellations of Australia Day events throughout the southeast, with celebrations in Brisbane, Ipswich, the Gold Coast and Moreton Bay called off because of the after effects of heavy falls earlier this week.
South of the border, about 3000 residents were ordered from their homes in Tweed Heads, Fingal Head and Murwillumbah last night, as the threat of swollen rivers, further rain and a king tide loomed.
More than 500 millimetres in three days, combined with a king tide, pushed rivers in New South Wales' far north beyond their banks, spilling water onto surrounding roads and into low-lying houses and caravans.
But the rainfall eased on Wednesday night and the Tweed River level began falling at both Chinderah and Murwillumbah.
Tweed Heads mayor Barry Longlands said although there had been extensive local flooding the damage to properties had been minimal.
"I know that water did enter properties and under houses but there was no significant inundation," he said.
"It's a great relief. The forecast rain we were expecting today has not arrived yet and it doesn't look like it will happen any time soon."
Cr Longlands said residents remained on alert with rain forecast into the weekend.
Moreton Bay Regional Council was still monitoring weather conditions yesterday despite river levels receding around the region.
About 60 roads in the area were closed while another 59 roads are passable with care.
Mayor Allan Sutherland said 341 requests for assistance had been received by the SES.
“With rain predicted for some days to come, the Local Disaster Management Group remains on alert. As the flood waters recede, council has begun cleaning debris from roads, parks and beaches and assessing the condition of public facilities,” he said.
“Council's road crews have been out and about early reviewing road conditions and getting on with the job of repairing pot holes.”
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