a mobile apparatus and method for weighing bales on an electronic scale in a field . fixedly supported on the rear end of a mobile crop baler are two load cells from which is pivotably suspended the inboard end of a bale - receiving - structure . the outboard end of the bale - receiving - structure is adjustably supported by a tether from at least one other load cell fixed to a rearwardly extended portion of the baler which allows the outboard end to swing upwardly as the underside of the bale - receiving - structure encounters berms in the field thereby preventing damage to the electronic scale components . the weight of each bale produced by the baler is digitally readout in the baler cabin where , by comparison to a predetermined weight , real time adjustments are automatically or manually made to adjust bale weight to the predetermined weight , thereby achieving greater weighing accuracy and enhanced overall output from the field . the scale may be used on original equipment balers or made to retrofit existing balers .