The Peel and Gwydir River Valleys are on Flood Watch after receiving solid rain over the past two days.
There's a 70 per cent chance of some minor flooding developing in the river valleys late Friday and on Saturday.
Acting Region Controller with the Namoi SES, Andrew Galvin, says farmers in low-lying areas should consider moving livestock and equipment to higher ground.
"The rain we've had across the catchment the past several days, that's wetted up pretty well now, and if we get higher rainfall today and tomorrow we could get a bit of a minor flood in the Peel River," he said.
"At this stage, it's a monitoring and watching situation and I would urge motorists to exercise caution and to be alert to the weather conditions."
Meteorologist with weatherzone.com.au, Drew Casper-Richardson, says more rainfall is expected across the New England North West as a broad complex low hovers around the region over the weekend.
Inverell has received the highest fall, with 84mm, while many other areas across the Tablelands and the North West Slopes and Plains have recorded falls of between 40mm to 60mm.
He says the system has produced good soaking rain, but will move to the north-east corner of the state by Sunday.
"The last two days have seen significant falls with Inverell receiving 84mm, Armidale 65mm, Gunnedah they received 47mm, Narrabri received 43mm, Moree 44mm and Tamworth 45mm," he said.
"For the next 24 hours, the North West Slopes and Plains can expect to see a further 20mm to 30mm, with isolated pockets of 40mm."
© ABC 2012
17:17 EST A 40-year-old man has been sentenced to a year in prison for fraudulently claiming money from the Queensland Flood Appeal.