Spring equinox to bring temperature highs of 18C ahead of weekend washout

Temperatures today will hit highs of 13C to 18C, with Met Éireann saying the Midlands and the West will see the warmest weather. File picture: Denis Scannell

As astronomical spring begins, the weather is set to be brighter with long spells of sunshine and temperatures of 18C in store for Thursday. 

However, it isn't going to last.