Temperatures plummet to freezing -7... and will be with us until Thursday
Plummeting temperatures of as low as -7C have led to a blanket of frost on roads in Dublin and across the country today.
Forecasters say the cold snap is set to carry on for the rest of the week.
Road users, cyclists and pedestrians have all been warned to take their time on their travels today and wrap up warm.
A status orange weather alert has been put in place nationwide.
The warning has been in place from 9pm last night until 10am this morning.
However, the frost conditions are not anticipated to lift until the early afternoon.
Met Eireann forecaster Siobhan Ryan said temperatures are the worst of the winter season so far and there's no sign of the weather getting milder in the near future.
"Road users, cyclists and people on foot should take extra care today - wrap up warm," she said.
"There will be no upward trend with regards to temperatures.
"Temperatures might only get up to -2C degrees in parts of the country (during today)."
With the cold-snap due to last until Thursday, Age Action Ireland are echoing concerns for elderly citizens.
Justin Moran of the advocacy group said that they are urging communities to play their part to ensure that their older neighbours remain safe and well in their homes in the freezing temperatures.
"Cold weather can kill and does kill in Ireland, making the winter a particularly challenging period for older people in particular," he said.
Mr Moran urged people to check on their elderly neighbours to see if they need help.