Maps of the mass-weighted mean dust temperature, 〈T_d〉, for four snapshots of the simulated clouds. We show, from top left to bottom right, MCs with progressively more advanced star formation. We overplot the stars present in the simulations, where the size and colour indicate the age and temperature of the stars, respectively. In general, regions not affected by stellar feedback have 〈T_d〉 ≃ 15 K, and regions where stellar feedback is important have 〈T_d〉 ≃ 50 K. These regions are small (a few pc) and limited to the direct vicinity of the stars in the early stages of star formation (e.g. MC2-MHD, top left), but involve larger parts of the cloud (a few 10 pc) at later stages (e.g. MC2-HD, bottom right).