Based on the 46 days′observations of the temperature and humidity inside four different storey rooms in midsummer in 2000 in Wuhan, the changing rules of the temperature and humidity inside rooms are analysed, and the differences of the garret′s to the other storey′s and the facing-nouth room′s to the facing-north room′s are described, which are caused by various solar radiation receiving and so on. After that, the forcasting equations to the temperature and humidity in rooms are set up with multivariate linear regression.