A weather forecast providing easy access to Internet, a subscriber's network, and a computer connected to Internet or the subscriber's network for retrieving correct weather forecast information in time without being vulnerable to interference includes a casing; and a sensor unit to detect ambient weather information, a sensor signal process and data output unit to process those signals, a display unit to display weather data, and a key-in unit disposed to the casing; and further includes an interface unit to capture data from a network, and a unit to process data captured by the interface unit and convert them into that is identified by and inputted into the display unit.