Temperatures are already freezing and now there is a warning that Wales could see "widespread snow" next week. In his latest forecast, BBC Wales weather presenter Derek Brockway says it could fall widely in the coming days.
There has already been a sprinkling of snow on higher ground in parts of Wales, but it could spread further before long. Derek says: "It is going to stay really cold for December. Very cold for the time of year. We're looking at widespread sharp frosts down to -5°C and -6°C in a few spots overnight. A few wintry showers as well over the next few days. These falling as rain, hail, sleet and snow."
Moving on to the forecast for next week, he says: "Next week is going to stay cold, the wind is going to pick up. Later on next week, say Thursday, there is a risk of more widespread sleet and snow, spreading up from the south west. It is not definite yet but it is something we are keeping a close eye on."
The Met Office says that the cold weather will continue through the weekend and into next week with sleet, snow and ice still possible, especially along the east coast of the UK, while inland it will often be dry with widespread hard frosts and patchy freezing fog. You can see exactly how cold it will be in Wales here.
The Met Office forecast for Wales shows that it will remain "cold and frosty" over the weekend. The forecast for Saturday says: "Fairly frequent wintry showers across the west at first but these becoming more isolated into the afternoon. Maximum temperature 5 °C."
The outlook for Sunday to Tuesday says: "Cold and with sunny spells and wintry showers, mainly near coasts and high ground. Sharp overnight frosts and fog patches in the east. Winds starting light but strengthening through Monday."
Met Office deputy chief meteorologist, Jason Kelly, said: “Through the weekend and into next week cold weather will continue, with an ongoing chance of wintry showers, mainly for coasts, and freezing fog patches inland.
“An area of low pressure may then threaten southern and southwestern parts of the UK through mid-week. Confidence in the exact track of this system is low, but should it push precipitation into the UK, then this would readily turn to snow, with a lower chance of freezing rain. How far north the milder air gets is also open to a lot of uncertainty, but for now, many central and northern areas are likely to remain in the Arctic airmass. "
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