How do we design buildings for an uncertain climate? Climate is changing at different rates across the globe and general inaccessibility of historical weather data means that many designers are still designing buildings based on outdated weather files for climate that no longer exists. For example, many EPW weather files used for EnergyPlus building simulations don't include data from the last two decades despite record-breaking weather seen year after year. In this session, we present current challenges and show the risks presented by climate change to building designers and what tools designers can use to access weather data from the latest advancements in meteorological and climate science.