Metop-B, the next polar-orbiting satellite, is due to be launched on 23 May. It's already arrived at its launch site http://www.eumetsat.int/Home/Main/News/Features/816870?l=en
This is an unusual year for ESA and EUMETSAT as a second weather satellite will also be launched this summer - MSG-3, to be known as Meteosat-10. It's a busy time for both European Space organisations.
http://www.eumetsat.int/Home/Main/News/CorporateNews/817025?l=en