Apart from a light passing shower or two near the east and north coastline, Tuesday will be bright with sunny spells.
The day will feel noticeably colder compared to weekend highs of 17c with temperatures ranging from 6 to 8c in a cold polar maritime airmass.
A band of rain and sleet showers, associated with a cold front, will move into north Ulster in the late evening before moving southward across Ireland overnight.
Showers will generally be light in nature and will tend to fizzle out as they move south.
Winds will be gentle to moderate northerly but stronger near east and north facing coasts.
Wednesday will be mostly dry with just a few scattered showers moving into eastern counties of Leinster from The Irish Sea. All areas will enjoy spells of sunshine with top temperatures of 5 to 9c, coldest in east Ulster and mildest in the Mid-West.
Another cold night ahead on Wednesday night into Thursday morning with temperatures of - 3c to +4c, coldest in eastern areas and the Midlands and mildest on the west coast.
Thursday and Friday will bring further light showers or rain or sleet, with some snow on high ground, but plenty of dry and bright weather is expected overall. It may remain a little cloudier in southern coastal areas. Overnight frosts will continue.
On Tuesday morning, there was north-south divide in relation to temperatures. In the north, there was lows of -2.5c in Castlederg, Tyrone; -0.8c in Charlestown, Mayo; -0.7c in Emyvale, Monaghan; and -0.6c in Ardara, Donegal. It was much milder further south with +7.2c being recorded at Rosslare, Wexford.