Frost this morning in Donegal, which will be slow to clear some areas.
Otherwise it will be dry with a mix of cloud and some sunny spells. Cold with highest temperatures 2 to 5 degrees in a light northeast breeze.
Mostly dry tonight with a good deal of cloud. Frost and some fog will form in light northeast or variable breezes. Lowest temperatures of -3 to +1 degrees.
Frost and fog will clear from most areas through Thursday morning to leave a largely dry day with a good deal of cloud and just limited sunny spells. A few patches of light rain or drizzle will occur. Highest temperatures of 3 to 6 degrees in light easterly breezes.
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