According to The Weather Company, which provides forecasting on FarmOnline, widespread cloud is spreading across all eastern states due to an upper trough.

This is generating rain areas across Queensland, western NSW, southeast SA and western Victoria.

And a second band of thick cloud is spreading over southwest WA from a cold front, causing rain with locally heavy falls.

Already big falls have been recorded overnight and more rain is expected throughout the nation's cropping and grazing areas as both systems move further east today.

According to the Bureau of Meteorology's overnight figures, the big falls in Queensland have been in the Channel Country with Birdsville receiving 57mm, Ballera 58mm, and Thargomindah 25mm.

In NSW, there has been some coastal rain as well, with Ballina receiving 11mm and Dorrigo 16mm, but it was the western division which received the most promising falls, with Broken Hill recording 14mm, Lake Victoria 96mm, Tibooburra 26mm, White Cliffs 20mm, and Wilcannia 16mm.

In Victoria Hopetoun has received 7mm, Walpeup 8mm, Longerenong 8mm, Nhill 7mm, and Warracknabeal 7mm, while in SA Edinburgh recorded 8mm, Strathalbyn 10mm, Nuriootpa 9mm, Kadina and Kingscote 11mm, Minlaton 7mm, Keith 6mm, Loxton and Renmark 11mm, Clare 12mm, Pt Augusta 14mm, Snowtown 10mm, Ceduna 10mm, Moomba 20mm, and Woomera 11mm.

The system in WA has brought Dwellingup 9mm, Mandurah 10mm, Bunbury 50mm, Witchcliffe 33mm, Busselton 16mm, while further north Carnarvon received 28mm and Geraldton 13mm.