The texture evolution of commercially produced AA3103 has been investigated by means of plane strain compression (PSC) tests over a range of temperatures (250-400 degreesC), strains and strain rates which cover the range of conditions typical of industrial hot tandem rolling. In particular, the behaviour of Cube grains present prior to deformation has been studied. The centre plane textures have been measured and modelled with different approaches - a Taylor type model considering grain interaction (GIA), a viscoplastic self consistent model (VPSC) and a rate sensitive relaxed constraints (RCRS) Taylor model. Non-octahedral slip systems in different combinations with variations of resolved shear stresses were considered. Among the different predictions, the GIA model came closest to describing the Cube texture decrease. All simulation results lead to the indirect conclusion, that non-octahedral slip systems are not active at 250 C, but may be active at 400 C. It is shown that the activity of these slip systems based on single crystal experiments of Al-1%Mn should be adjusted for application to AA3103 polycrystals. The rate dependency of the textures was better reflected by the rate insensitive formulated, but flow stress dependent GIA model than by the two rate sensitive models. Detailed temperature dependencies of the plane strain texture components were not satisfactorily predicted by any of the models.