A Status Yellow Low Temperature/Ice warning has been issued for all of Connacht, Cavan, Monaghan, Donegal, Longford and Clare.
The alert will come in to effect at 6 o'clock tonight and is set to last until 10am tomorrow.
Status Yellow - Low Temperature/Ice warning for Connacht, Cavan, Monaghan, Donegal, Longford and Clare https://t.co/Xg3aMJlyuS
Valid: 18:00 Tuesday 05/01/2021 to 10:00 Wednesday 06/01/2021
Issued: 13:00 Tuesday 05/01/2021
Updated: 13:22 Tuesday 05/01/2021 pic.twitter.com/YRZ8nByHzZ
— Met Éireann (@MetEireann) January 5, 2021
Met Eireann is forecasting temperatures will drop to between -2 and -5 degrees overnight.
Alan O'Reilly says the cold spell will affect the west the most.
"It will be coldest in the west and north west, which is a little bit unusual."
"That's where you could see temperatures go down to minus six or minus seven degrees."
Mr O'Reilly says an incoming band of rain will fall as snow but it should "die out fairly quickly."
There will be widespread severe frost and icy patches on untreated surfaces.
RSA Cancels Driving Tests Due To Icy Conditions
Meanwhile, a number of driving tests across the country were cancelled today due to icy road conditions.
Due to the current weather forecast, there is a possibility of some disruption to driving tests today - Tuesday 5th January, 2021 ↪️ https://t.co/88z4OEAD6O pic.twitter.com/LLkkxaEMY0
— RSA Ireland (@RSAIreland) January 5, 2021
The Road Safety Authority confirmed that 34 tests which were scheduled for this morning did not take place as a result of the cold spell.