A status yellow cold weather warning has been issued for Leinster, Cavan and Monaghan for the weekend.
Met Éireann is forecasting low temperatures, snow showers, and snow accumulation - with the coldest weather expected mainly Saturday night and Sunday.
The warning came into effect this morning, and is valid until midnight on Sunday.
— Met Éireann (@MetEireann) March 16, 2018
Forecasters have previously said any snow will be a "completely different scenario" to Storm Emma, which brought blizzard conditions earlier this month.
This morning, Met Éireann forcaster Klara Finkele explained: "Temperatures will gradually fall... so by tomorrow morning we'll see around 3 or 4 degrees on the east coast.
"But tomorrow's temperatures in the afternoon will be just 1 or 2 degrees. So it will be quite cold."
She added that rain showers in the morning will turn wintry through the day, and suggested any parade-goers would do "very well to wrap up".
Outside of the eastern half of the country, warmer weather is expected tomorrow - with temperatures of 4 to 6 degrees in the west.
