Stored product insect pests are influenced by a variety of environmental factors, including macro- and microclimates. Microclimates can be strongly influenced by local insect populations, food presence, and storage conditions. Bulk grain and warehouses also show macroclimatic seasonal patterns in insect abundance just as in nature. As the world’s climate is warming, storage conditions will change, impacting how grain should be managed. Patterns from recent laboratory and field monitoring work provide some pieces in understanding the puzzle of how changing temperatures are affecting insect population growth in combination with food availability and insecticide use. A study on different milling fractions demonstrated the interplay between diet and temperature playing an important role in population growth, with different milling fractions having varying maximum population levels at different temperatures compared to one another. Another study showed that reduction in progeny following insecticide exposure was less effective at higher temperatures for two species, but not a third. In our monitoring study, populations of Indian meal moth Plodia interpunctella were more influenced by thermal cues such as snowpack and minimum and maximum temperature, while the warehouse beetle Trogoderma variabile was only influenced by minimum temperature. These results together suggest that as climates are warming, managers of grain storage environments must pay attention to when they treat their commodities, as increased temperatures can decrease overall effectiveness of their treatments. In addition, as some insects are more impacted by temperature changes, monitoring for specific infestations can help guide management practices for more cost-effective strategies.