Cooler conditions and rain are forecast for the Bundaberg Region until the end of this week as a trough extends south and deepens.
Weather bureau spokesperson Rosa Hoff said 50-100mm are expected over the Wide Bay region.
Bundaberg is forecast to receive more rain than Hervey Bay.
“This rainfall is going to fall in a slow accumulation, picking up from Tuesday night and raining fairly consistently through the day as we move through Wednesday,” she said.
“Some areas will have isolated higher totals within that, but most locations can expect to see at least 30-40mm in total over the next couple of days.
“Rain and showers will be the most widely experienced weather but we can't rule out a rumble of thunder on Wednesday as an inland trough pushes closer to the coast, making conditions a bit more favourable for a thunderstorm.”
The Wide Bay Burnett area outlook for Thursday is cloudy with a high chance of rain and a possible thunderstorm in the morning with heavy falls near the coast.
New Year celebrations on Friday could be dampened with an 50 per cent chance of rain forecast.
For Bundaberg, the bureau is forecasting 1-10mm on Tuesday with a maximimum temperature of 29 degrees.
On Wednesday, the forecast is 20-45mm and a top of 26.