An integrated circuit (IC) includes: a plurality of hardware performance counters; a thermal sensor; and a micro-controller. The micro-controller generates a plurality of thermal predictors based on values of the counters and temperatures sensed by the thermal sensor. The thermal predictors include first and second rising thermal delta predictors to predict rising temperature deltas and first and second falling thermal delta predictors to predict falling temperature deltas. The micro-controller predicts a future temperature of the IC based on an idle temperature of the IC and a selected one of the temperature deltas.