Mid-season heat and drought stress (HS+DS) severely impacts peanut growth, slashing yields by up to 50% and degrading kernel quality—key factors in market pricing. For Virginia-type peanuts, which command premium prices due to their large kernel size and superior grade (especially the "fancy" classification), HS+DS reduces both yield and percentage of total sound mature kernels (TSMK). This dual loss directly undermines profitability, as poor grades can offset gains from high productivity. With grade standards serving as a critical benchmark for growers and shellers, mitigating HS+DS is essential to preserving both yield and market value. This article discusses the effects of HS+DS on peanut yield and grade and highlights the importance of this combined stress.