As extreme weather events increase in frequency and severity, researchers and government organisations are striving to build community resilience, raise mental health awareness, strengthen community connectedness, reduce mental health stigma, and encourage help-seeking behaviours; however, the evidence-base for and evaluation of these community-based interventions is lacking. Furthermore, the success of activities focused on individual behaviour change is likely to be restricted by barriers within opportunity structures, prevalence of socio-economic determinants of mental health, and access to services. It is essential to acknowledge the societal-level contexts, constraints, and many reciprocities characterising dynamic systems and real lives. Using Community Based System Dynamics modelling, this research reports on causal pathways in which extreme weather events including drought, bushfires, and floods have impacted on social and emotional wellbeing in Stanthorpe, QLD. Different stakeholders in the community including local government officials, healthcare providers, social workers, and community leaders were engaged in the identification of factors relating to extreme weather events that affect social and emotional wellbeing. In total, 22 feedback loops were identified, including 21 reinforcing loops and 3 balancing loops. The most significant loops involved agricultural yields, financial security, community cohesion, and access to mental health services. Cultural perspectives and messaging around resilience and identification with stoicism were also shown to reduce the likelihood of help-seeking behaviour.