Katherine's hottest September day will be under threat again this week.
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The Bureau of Meteorology said the extreme build-up conditions will continue.
Forecasts for the final week for school include a run of three days – Tuesday, Wednesday and Thursday – with maximum temperatures of 39 degrees.
Saturday’s maximum reached 39, a degree shy of the all-time recorded maximum of 40 degrees, from September 27 in 2012.
Some would be surprised to learn the average for the month is only slightly warmer, 0.5 degrees, than previous years.
Minimum temperatures will remain above 20 degrees for the remainder of the week.