This study examines the effect of curing temperature variations (40˚C, 60˚C, and 80˚C) on the compressive strength of mortar containing 12% nanosilica synthesized from fly ash. The curing process consisted of 24-hour oven curing followed by wrap curing up to 3, 7, 14, and 28 days. The results show that curing temperature significantly influences strength development. Mortar cured at 60˚C ac…