Loudness judgments of sounds varying in level across time show a non-uniform temporal weighting, with increased weights assigned to the beginning of the sound (primacy effect). In addition, higher weights are observed for temporal components that are higher in level than the remaining components (loudness dominance). Two experiments were conducted in which sounds consisting of 100-ms Gaussian wideband noise segments with random level variations were presented and either none, the first, or a central segment was amplified or attenuated. In Experiment 1, the sounds consisted of four segments that were separated by 500-ms gaps for which previous experiments showed no primacy effect. In Experiment 2, four- or ten-segment sounds without gaps between the segments were presented to examine the interaction between the primacy effect and level dominance. As expected, for the sounds with segments separated by gaps, no primacy effect was observed, but weights for amplified segments were increased and weights for attenuated segments were decreased. For the sounds with contiguous segments, a primacy effect as well as effects of relative segment level (similar to those in Experiment 1) were found. The data indicate no substantial interaction between the primacy effect and loudness dominance.