Any mist or low cloud will quickly clear to leave a dry and mostly sunny day, according to Met Éireann.
Highest temperatures will generally range between 13 and 17 degrees, coolest in northern Ulster in light northeasterly breezes.
Tonight will be mostly dry with long clear spells, although there is a chance of a few showers pushing in from the east towards Sunday morning.
Lowest temperatures of 4 to 7 degrees in light to moderate northerly breezes.
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