Temperatures are expected to fall to minus 7 and minus 8 degrees again tonight.
Hikers heading to the Slieve Blooms are being advised to take extreme care amid the current cold snap.
A status orange low temperature and ice warning has been issued by Met Éireann, and will be in effect from 6pm this evening until midday tomorrow.
Temperatures are expected to fall to minus 7 and minus 8 degrees again tonight.
Carrying a flashlight, making sure your phone is charged and informing somebody of how long you'll be gone for are some of the safety measures urged by the Civil Defence.
Laois Civil Defence Officer, Damian Dollard, is encouraging people to use their best judgement:
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