The warning comes into effect at 6 pm this evening.
A second fog warning has been issued for the Midlands.
The warning also affects Leinster, Munster and Cavan, Monaghan, Galway, Leitrim and Roscommon.
It begins at 6 pm this evening and runs until 10am tomorrow morning.
Possible impacts include difficult travelling conditions and poor visibility.
Planning Permission Approved For New 800 Pupil Secondary School In Midlands
The Coláiste Phobal in Roscrea has been given the green light.
Annual Rose Of Tralee Tour Underway
Westmeath Rose Caoilfhinn Ní Choiligh is one of this year's contestants.
Longford-Westmeath TD Urges Action On Vacant HSE-Owned Buildings
120 HSE-owned buildings have been vacant for over 12 months, including 11 in Westmeath.
Taoiseach Backs Offaly Camino Proposal
The initiative would aim to develop the Grand Canal Greenway into a tourist destination.
Laois Pride Launch Writing Competition In Memory Of Joe Drennan
The annual competition will honour the memory of Joe Drennan.
Laois Truck Driver Arrested For Driving Overweight Truck Under Influence
The driver was arrested with the vehicle seized and court proceedings are underway.
Offaly Business Closed Over Food Safety Breach
11 food businesses were issued closure notices nationwide.
Gardai Continuing Laois Meadow Fire Investigation
It took place in Mountmellick on July 30th.
