An embankment section along the Inuvik-Tuktoyaktuk Highway in the Northwest Territories, Canada, was instrumented with temperature sensors during its construction in April 2015. The embankment is founded on continuous permafrost and was built using compacted frozen fill. A numerical model was previously developed in a commercially available finite element software to simulate the thermal behaviour of this embankment. The model was calibrated using temperatures available in the embankment fill and underlying foundation between April 2015 and August 2018, followed by thermal performance forecasting for near-term (i.e., less than 30 years) and long-term (i.e., to 2100) climate scenarios using CMIP5 projections for Canada. Since the original thermal assessment for this site, 5 years of additional data have been recorded from the temperature sensors. The next-generation CMIP6 climate scenarios have been developed. This paper aims to evaluate the temperature data collected between 2015 and 2022 with the forecasted temperatures using the next generation climate scenarios. The results of the climate scenarios presented in this paper provide an insight into the opportunities and risks involved in maintaining embankment thermal stability and impede permafrost degradation.