Smart agriculture is a new concern in IoT systems. IoT technologies can provide information about the agriculture field and its surroundings and act accordingly. Architecting smart agriculture systems can benefit from architecting methods available for IoT systems. In this paper, we introduce CSA-CAPS, a Climate Smart Agriculture modeling framework designed based on CAPS. CAPS is an architecture-driven modeling framework for developing IoT Systems. CSA-CAPS includes a modified meta model for the software architecture of CAPS. It adds special sensors and functionalities for climate concerns of building smart agriculture systems. This paper shows the capability of CSA-CAPS by applying motivating scenarios