A network of weather stations was established around the coasts of the United Kingdom of Great Britain and Ireland.

[2] The service expanded rapidly in the post-war years, with its headquarters relocating to O'Connell Street, opposite The Gresham Hotel in Dublin.

Ireland joined the World Meteorological Organisation in the 1950s, and was a founder member of the European Centre for Medium-Range Weather Forecasts in 1975 and EUMETSAT in 1983.

[1] In 1979, the service moved to new purpose-built premises in Glasnevin, Dublin, designed by Liam McCormick (primarily known for his ecclesiastical buildings in Ulster).

[7] Met Éireann and ICHEC are working on bringing a 5 km resolution HIRLAM model into production by the end of 2010.

The service also runs many more automated observation stations around the State, including – As Ireland is strategically located on the busy air routes between North America and Europe, aviation forecasting is an important part of Met Éireann's work.