A new model has been developed to predict how much rainwater is intercepted by trees in forests. This model doesn't need any guesswork to work, and it considers factors like how much water the trees can hold, how dry the trees are, how dense the canopy is, and how quickly water evaporates from the leaves. The model can be used to predict rain interception on an hourly, daily, or event basis, depending on the weather data available. When tested in Florida forests, the model accurately predicted 89% of the variation in rain interception compared to other models.