Frost and ice will persist through much of the day
Weather update from Met Éireann
Patches of freezing fog persist this morning leading to "hazardous driving conditions" in some areas.
A Status Yellow 'Freezing fog warning' remains in place for Connacht, and also counties Cavan, Donegal, Monaghan, Longford, Louth, Meath, Offaly and Westmeath until 10am.
Very cold this morning with any patches of freezing fog in the north clearing. Frost and ice will persist through much of the day. Mostly cloudy in the southern half of the country today with rain in the southwest, falling as sleet or snow in places away from the coast, causing hazardous driving conditions. Otherwise, it will be dry, with brighter conditions in the north. Daytime temperatures between -1 to +4 degrees in light to moderate northeasterly winds, fresher in the southwest.
Another bitterly cold night but becoming generally dry and clear. There is the chance of an isolated wintry shower near coasts. Widespread frost and ice will develop with lowest temperatures of -7 to -1 degrees in a light to moderate northeast breeze.
Cold and dry tomorrow with crisp winter sunshine. There is the chance of isolated wintry showers near northern and eastern coasts. Highest temperatures of 1 to 4 degrees in light to moderate north to northeast winds.
Another very cold night tomorrow (Wednesday) with lowest temperatures of -6 to -1 degrees. Widespread frost and icy stretches developing. Remaining generally clear and dry in a light northerly breeze, though there will be isolated wintry showers in the north and northwest.
Dry for most of Thursday with plenty of winter sunshine. There will be a few showers of rain and sleet in the north and northwest. Daytime temperatures of 2 to 5 degrees in a light northwesterly breeze.
A few more wintry showers in the northwest overnight on Thursday but otherwise it will remain dry. Patches of freezing fog may develop with lowest temperatures of -7 to -2 degrees in a light westerly or variable breeze. Widespread frost and icy conditions will persist.
A status yellow low temperature/ice warning will remain in place until noon on Friday nationwide.
Friday is forecast to be dry and bright day for much of the country but showers of rain and sleet will move into western areas through the day. Still very cold with afternoon temperatures no higher than 1 to 4 degrees in light to moderate southwest winds.
Very cold overnight on Friday with some lingering showers of rain and sleet in western areas. Elsewhere will stay dry but there is the chance of an isolated shower in the south. Lowest temperatures of -5 to 0 degrees.
A dry and bright day on Saturday, apart from isolated coastal showers in the south and west. Turning cloudier after nightfall. Daytime temperatures of 2 to 6 degrees.
Further outlook: There is a good deal of uncertainty in the forecast from Sunday onwards. Current indications suggest that it will turn more unsettled and milder with spells of rain at times.