Parts of central western Queensland have seen more than 80mm of rain during the last two days, with the Murray Darling Basin next in line for some welcome wet weather.

A slow-moving upper-level trough interacting with moisture-laden air caused rain and thunderstorms in central and western Queensland on Tuesday and Wednesday.

Blackall Airport registered 84mm of rain during the 48 hours to 9am on Thursday, which was its heaviest rain in seven months. It was also more than three times the amount of rain that fell in Blackall between April and September.

Charleville's 31mm during the last 48 hours was close to a month's worth of rain at this time of year and their best drop in six months.

Further showers and thunderstorms will develop over a broad area of inland Queensland on Thursday, stretching from the Channel Country and western Maranoa and Warrego Districts up to the Northern Goldfields and Upper Flinders District. Rainfall on Thursday will be hit and miss due to its convective nature and it's also worth noting that some storms could become severe.

Central Queensland's three-day rain event will clear up on Friday as the upper-level trough weakens and moves towards the Coral Sea.

However, another rain and storm-bearing system is on the way for parts of Queensland and the drought-weary Murray Darling Basin.

A cold front and associated low pressure trough will pass over southern and eastern Australia between Friday and Tuesday. The contrast of warm and humid air ahead of this system and much cooler air in its wake will cause widespread rain and thunderstorms.

While most troughs passing over the Murray Darling Basin in recent months have failed to bring much rain, this system will tap into moisture lingering over Queensland and cause the most widespread rain in about six months.

Showers and storms will develop over South Australia on Friday and spread into western Victoria and Tasmania during the evening.

The trough and front will move further north and east during the weekend, causing showers and storms to spread over Tasmania, Victoria and a large swathe of NSW and southwest Queensland on Saturday and Sunday.

The eastward-moving trough will then produce showers and thunderstorms over central and northern NSW and southern and central Queensland on Monday and Tuesday.

This system will cause widespread rain in and around the parched Murray Darling Basin. While this is exciting news, it's important to note that some areas will fare better than others and this rain is unlikely to break the drought.

Forecast models suggest that widespread falls of 10-40mm are likely in western Tasmania, eastern Victoria and southern and western NSW between Friday and next Tuesday. Some areas could see locally heavier falls, particularly with thunderstorms.

Be sure to keep up to date with the latest severe weather and thunderstorm warning across southern and eastern Australia during the next several days.