Warning of icy roads
Met Eireann has issued a Status Yellow - Low Temperature/Ice warning for Kildare and the rest of Ireland.
The alert is from 8pm on Tuesday to 10am on Wednesday.
Forecasters said conditions will be "very cold with widespread frost and icy stretches."
Possible impacts will include hazardous conditions on roads and paths and some travel disruption.
Met Eireann said this week's weather will see a transition to significantly colder conditions lasting through much of the week.
Wintry hazards including frost and ice are likely with potential for sleet, snow and hail for some.
The outlook is for cold conditions with frost and icy patches developing during the nights with localised freezing fog possible. Wintry showers for some.
Wednesday Night: Dry and clear in many parts but scattered showers will continue in parts of the west and north. Lowest temperatures of -3 to +1 degrees with frost and icy patches in mainly light to moderate northwest or variable breezes.
Thursday: Many areas will be dry and cold with spells of sunshine but again there will be some rain, sleet and possible snow affecting western and northern parts. Highs of 3 to 5 degrees with northwest winds, fresh at times near the coasts.
Thursday Night: Dry for most counties but a few wintry showers will continue to feed in across northern areas. Lowest temperatures of 1 to -3 degrees in moderate northwesterly breezes. Frost and icy patches will develop overnight.
Friday: Quite a cloudy day overall with a few showers for western areas. Highest temperatures of 3 to 6 degrees in a freshening southwesterly breeze.
This Weekend: Current indications are for a very unsettled day with rain, possibly heavy at times with strong winds too. Becoming much milder though with temperatures heading back into the double figures.
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