Drivers have been warned to expect widespread fog across South Yorkshire this morning.
Heavy mist and fog patches are likely until around 11am, which may locally be dense.
This will clear during the late morning though to give another dry day, with light winds and some sunny spells.
It is forecast to be dry and clear for much of the night, with a few mist and fog patches forming.
Towards dawn, cloud is expected to thicken, perhaps bringing some outbreaks of rain.