This paper presents efficient and ease of idea regarding atmosphere tracking as it has great importance in many industry like agriculture, military, entertainment, etc. Currently the appearance of really efficient sensors at very low prices is motivating the development of many weather tracking applications, which up to now turn to be large in size and expensive. We present the design of a tiny and low cost, “Atmosphere Tracking System” to measure accurate temperature, relative humidity and rain fall detector. These direct climatic variables and others indirectly attainable, like the dew-point, wind chill, etc., are readable through display. The chosen sensors are factory calibrated. This paper presents atmosphere tracking system made of temperature, humidity sensors embedded in a microcontroller based board.