It is said that ink weather has the function of 15-day weather forecast. Does anyone know if the forecast is accurate?

Ink weather can predict the weather of 15 days, and it is quite accurate. For example, I have been using the new version of ink weather, and I have counted it myself. 15 weather forecast accuracy can reach over 90%, which is quite good! We check the weather every day and go on short business trips to learn about the weather in different places. This 15-day forecast function is enough.