Maternal effects are a prevalent source of early life phenotypic variation in offspring across diverse taxa and have been shown to provide offspring an adaptive advantage in response to maternal environmental stimuli. There are several well studied examples of adaptive maternally induced intergenerational effects in response to the parental environment mediated by mechanisms such as stress hormones and nutrients. DNA methylation is a fundamental cellular process that affects gene transcription and can respond rapidly to changing environments yet remains a largely unexplored mechanism for maternal effect signaling. We manipulated maternal environment in sexually maturing female Chinook salmon (Oncorhynchus tshawytscha) by reducing food availability or increasing day length. We used a factorial breeding design as well as gene-specific sequencing assays to analyze how maternal effects influenced DNA methylation in offspring at the eyed egg and alevin developmental stages We found significant maternal effects on gene-specific DNA methylation as well as heightened levels of maternal effects in response to an increase in maternal photoperiod. We report higher maternal effects in early life stages that decline through development in four gene functional categories: growth, immune response, metabolic function, and histone protein regulation. Despite a potential resetting of the methylome following fertilization, we provide evidence that maternal effects can modulate gene-specific DNA methylation, and that effect is sensitive to the environment the mothers experience. This pattern of epigenetically-mediated maternal effects responding to maternal environment is consistent with a fundamental process driving intergenerational phenotypic variation.