To understand the role of temperature in electronic decoherence, we repeated the analysis in the 283-313 K range every 5 K while taking into account that for harmonic environments J(ω) is temperature independent. The results in Fig. show that solvent effects become increasingly more important with temperature. In turn, the vibrational contributions (Fig. ) remain unaltered because thermal energy does not excite the vibrational modes that dictate decoherence. For this reason, the early-time decoherence dynamics is approximately independent of temperature as it is controlled by vibrational motion, while the overall decay is accelerated with increasing temperature leading to a reduction in the visibility of the coherence recurrence at ∼ 20 fs. Additional experiments are needed to isolate the importance of emergent temperature dependence of J(ω) that can arise from differences in the mapping of chemical environments to harmonic models with varying temperature.