THE heat and humidity weren't the only things on our radar this week, as the Emerald weather radar took a spell just as storms hit.

The radar went down on Friday before the Highlands had heavy rainfalls and Rockhampton and Gladstone copped the brunt of a beating with wild weather.

Bureau of Meteorology media and communications manager Pradeep Singh said the problem would be rectified promptly.

"The Emerald radar went down last Friday (January 16)... the area was experiencing power fluctuations at that time and we believe these interruptions must have affected the radar power supply unit," he said.

Two bureau technicians flew into town yesterday with spare parts and, if the problem was identified and the parts available, it was to be fixed.

"If not there could be further delays but we will endeavour to get it online as quickly as possible," Mr Singh said.

"The rest of the week will be quite active weather-wise around Emerald, the surrounding radars around Emerald at 256km and 512km ranges should still be able to cover most of the areas scanned by the Emerald radar."

Weatherzone forecaster Anthony Duke said while a lot of Australia had seen above-average levels of humidity, hopefully some heavy rainfalls eased the muggy madness.

"A lot of Australia has seen levels of humidity, particularly near the coast, but even inland like yourself seem higher than average," Mr Duke said.

While widespread showers are predicted with falls from 10-50mm and 50-150mm in areas in the Highlands, Mr Duke said the rainfall would provide a nice reprieve from the high temperatures.

"We've got a really broad trough moving across Central Queensland this week, bringing very muggy conditions and very showery conditions," he said.

"The next couple of days might be a bit cooler, 27 degrees and 28 degrees on Thursday and Friday.

"The totals (rainfall) by the end of the week could be quite big."

Heavy falls

Emerald: 27mm

Blackwater: 28mm

Blackdown Tableland: 51mm

Glen Rock Station: 62mm

Upper Van Dyke Station: 56mm

Heathwood Station: 59mm

Deverill Station: 118mm

Clermont: 25mm

Rolleston: 26mm

Anakie: 46mm