New Zealanders hoping to see the final space shuttle flight can check the Nasa website for times it can be viewed in the sky overhead.
The space shuttle Atlantis is scheduled to land in Florida on Thursday morning (Thursday evening NZT).
WeatherWatch analyst Phil Duncan said the best viewing on Wednesday would be in eastern and inland areas of the country.
Clouds forecast for northern parts of New Zealand would hopefully hold off until after the space shuttle passed over our skies, Mr Duncan said.
Rain clouds forecast across the country could make viewing the shuttle difficult on Thursday, he said.