The worst of the weather has centred on the Maranoa and Warrego, which has seen cereal farmers miss most of the damage.

Cotton farmers, fearful of the damage potential, are unsure of the impact the floods - it's likely to be some time after the waters have subsided that an accurate assessment can be made.

Damage to cotton crops is expected to be variable, depending on the extent of flooding and the time crops spend submerged.

Typically, crops struggle to survive if they are covered by water for more than two days.

Cereal farmers are expected to escape the floods relatively unscathed with minimal rain across the western Darling Downs and inner Darling Downs last week.

Ironically, some sorghum growers still need more rain to finish off crops which have only seen 50 to 60 per cent of their normal rainfall since November.

Early sorghum harvest has just commenced west of Dalby. The harvest pace will escalate rapidly with favourable weather.

Rain is continuing to create logistical problems for Queensland grain movements, and spot grain prices have rallied.

Recent rain across Central Queensland will suit the main sorghum planting. There appears to be limited early planting of sorghum across CQ.

The firm Australian dollar is making it tough on export-orientated industries including graingrowers.

The currency topped six-month highs of more than 1.07c as it appreciates against both the euro and the US dollar.