A nationwide status yellow low temperature and ice warning, as well as an alert for fog, will be in place over the weekend.
They come into effect from five o'clock this evening until midday on Sunday.
Met Eireann is warning of very cold temperatures during the day and at night with persistent frost.
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The forecaster says there could be slippery conditions on our roads so caution is needed. Magheracloone native and Met Eireann weather forecaster Gerry Murphy has been speaking to Ronan Gargan.
