The advanced technologies deployed to reduce rainfall during Friday's Olympic opening ceremony may not be needed after all, as forecasters have predicted a rainless day.

"The latest analyses suggest a cloudy sky during the opening ceremony at the National Stadium and temperatures ranging between 25 C and 30 C," China Meteorological Administration (CMA) spokesperson Yu Xinwen told a press conference at the Beijing International Media Center yesterday.

Beijing might experience scattered showers or thunderstorms tomorrow afternoon but nothing that would affect the show, Yu said.