An Orange weather warning for fog has been issued for the county.
Kerry County Council is advising motorists and members of the public to exercise caution this evening and tonight following the issuing of the warning.
Pockets of freezing fog are expected and motorists are asked to use their fog lights as appropriate.
Pedestrians and cyclists should wear high visibility clothing and use lights if they are out and about.
Motorists are also asked to look out for icy conditions on roads as temperatures fall.