The burgeoning research in the fields of Artificial Intelligence and machine learning has given rise to numerous weather prediction models. But the problem of accurately predicting or forecasting the weather persists. Numerical weather prediction is taking the existing numerical data on weather conditions and applying machine learning algorithms to forecast the weather. This paper is the application of machine learning algorithm-decision Tree to predict the weather based on a few parameters such as temperature, pressure, humidity. Using the stepwise regression process along with the decision tree, weather forecasting is achieved.