It was a lovely winter's day for many places with fine sunshine, light winds but chilly temperatures. Those light winds and clear skies allow temperatures to tumble once again and see problems with freezing fog returning to parts of east Wales.
Further west there's more of a breeze to stop it forming. It will be very cold everywhere with lows of -4C, colder still in the countryside.
Wednesday feels like a repeat performance with winter sunshine and once again, lingering fog patches. A very cold start to the day once again, but as the day progresses more cloud builds in from the west with rain eventually arriving in Pembrokeshire. Highs of 4-5C.
That rain will push across the country overnight, as the rain hits cold air and frozen surfaces we may well see snow and sleet, this could lead to icy roads and pavements before milder air returns the snow back to rain.
The rest of the week turns more unsettled with rain and showers, much stronger winds, but much milder too.
Icy by night, chilly by day - brace yourself for a cold week ahead.
High pressure keeps the weather chilly by day, icy by night, with an increasing risk of freezing fog.
High pressure this weeks means mainly cold bright days and icy cold nights.