It's time to break out the winter woolies because overnight temperatures are set to plunge as low as freezing later this week.
According to Met Éireann, the weather this week will be "changeable" and "relatively cold for October" with frost likely on Thursday and Friday night.
On Wednesday, however, much of the country will be "dry and bright with sunny spells", and just a few passing showers. Maximum temperatures of 10C to 14C are expected with fresh northerly winds.
Wednesday night will be cold and dry with clear spells. However, a "few showers" will affect the northwest. Lowest temperatures of 1C to 5C are predicted with "a touch of frost possible."
On Thursday, most areas will be dry with "plenty of sunshine" and just a few well-scattered showers. It will be a "relatively cold day for October" with maximum temperatures set to reach only 8C to 11C.
Thursday night will be cold with the risk of frost in many areas. It will be largely dry overnight with clear skies but there is the chance of one or two showers in the northwest.
Temperatures as low as 0C to 3C are expected but it will be less cold along the Atlantic seaboard. Some mist or fog patches may form as well.
The frost and mist patches will clear on Friday morning to leave a "mostly dry day with sunny spells." Top temperatures of 9C to 12C are in store.
It will stay "mostly dry" on Friday night but a few showers are expected in Connacht and west Ulster. It will be another cold night for most with lowest temperatures of 1C to 4C forecast.
Current indications suggest showers will push in across Connacht and Ulster on Saturday. However, it looks set to hold "mostly dry" in Leinster and Munster with some "bright or sunny spells."
Sunday will start mostly dry with some "hazy sunny spells", however, outbreaks of rain are likely to extend from the south later in the day.
Check out the Irish Examiner's WEATHER CENTRE for regularly updated short and long range forecasts wherever you are.