I was having a look there on met.ie its saying there might be a light ground frost in rural aera's lads. Jsut a bit of a heads up.
Sunday and Monday will be dry days with variable cloud amounts, but good sunny spells are expected each day. Winds will be light to moderate and mainly from the east or northeast, but will be variable at times, with local sea breezes. Top afternoon temperatures will be typically in the high teens, but may well hit 20 degrees at times. The nights will be chilly, with some mist and fog under clear skies, and a slight grass frost is likely in rural areas. Minima typically of 4 to 8 degrees. Daytime temperatures may fall back a little from Tuesday onwards, more typically in the mid teens, as winds look set to come from a more northerly point, but it should still stay mostly dry and settled.