Thank you for the opportunity to help you with your question!
Can you show me the graph you have a question about? The solubility of this molecule at 20 degrees celcius is 20.8g/100g water, and so at 25 degrees celcius it should be slightly higher but not by a whole lot. I will show you a sample picture of how I determine solubility from a graph.
Please let me know if you need any clarification. I'm always happy to answer your questions.