The Met Office has issued a yellow "be aware" warning of ice for Denbighshire, Flintshire, Powys, Wrexham and Monmouthshire.
It says there could be difficult driving conditions in places.
More top news
A final dig at the site of an early Medieval chapel on Pembrokeshire beach is expected to reveal more about the history of Wales.
Carwyn Jones speaks to our Political Editor Adrian Masters in the final part of our pre-election series on ITV Cymru Wales.
Alexandra Lodge has been to Aberconwy, where Plaid Cymru, the Conservatives and Labour are all hoping to claim victory.