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Today

Widespread and dense fog for a time this morning could cause hazardous conditions across Leinster and Munster. It'll be misty for a time too elsewhere and today will be generally humid and cloudy everywhere. It will brighten up from time to time but occasional outbreaks of rain will occur also. Highest temperatures will reach between 17 and 20 degrees and winds will be calm or light easterly or variable.

Tonight

It'll turn misty or foggy again tonight as the mild and humid conditions persist, but with light to moderate easterly breezes it will lift a little and wont be as dense. Temperatures will fall to between 12 and 14 degrees.