Temperatures look set to drop to -4 degrees in some areas tonight as the cold snap continues.
A status yellow snow and ice warning remains in place until Saturday with more hail, sleet and show showers forecast.
Forecasters say parts of the north, west and south-west have already seen some "quite heavy snow" over the past few days.
Motorists are being warned to watch out for icy and frosty conditions.
Evelyn Cusack, head of forecasting at Met Éireann, said there will be more snow but it's unlikely to stick.
Here is the latest visible satellite image of Ireland. This shows some scattered cloud across the country but also shows areas with lying snow. The snow is clearly visible over the Wicklow Mts, parts of the southwest and much of Ulster and the north Midlands.#Sneachta pic.twitter.com/x7Sml9g0g6
— Met Éireann (@MetEireann) January 30, 2019
She told the Hard Shoulder: "We're going to have the added effect of wind chill tomorrow... so it's going to feel bitterly cold.
"There will be heavy snow in places - but it will be wet snow. It shouldn't cling on too much, and it is going to clear away."
She added: "Overall, it doesn't look like we will be going orange [weather warning] - we're certainly not this evening.
"Certainly there have been some very poor conditions in place overnight, and also again tomorrow."
In Dublin, the Homeless Executive (DRHE) says extra contingency beds are in place during the cold snap to ensure any rough sleepers who need a bed have one.
However, concerns have been raised by the Inner City Helping Homeless group.
CEO Anthony Flynn said their teams assisted 86 people on their routes last night, adding: "With snow forecast this week we have grave concerns for the safety of people sleeping rough around the country."
