Wales has had the coldest night of the autumn so far, and is set to get colder and more wintry by the end of the week.
According to Welsh forecaster Derek Brockway Trawsgoed in Ceredigion was one of the coldest places in the on Monday night with a low of minus 4°C, making it the coldest night of the autumn so far in.
Temperatures are set to rise a little on Tuesday, before falling away again on Wednesday and it is set to get more unsettled by the end of the week with a chance of wintry showers.
It is normal weather for the time of year, but forecasters are warning it will feel colder because of the mild autumn we have had so far
But what are the chances of snow. Here is what the forecasters had to say.
Welsh forecaster Sabrina Lee
The BBC Wales forecaster said: "Colder week in store and there are some wintry showers in the forecast. Tuesday will be cloudier with the best of the bright weather in the main, chance for sleet and snow showers are towards the end of the week."
Met Office forecast for Wales
The Wales outlook from the Met Office for Tuesday to Friday reads: "Cloudy to start on Wednesday before outbreaks of rain develop later. Turning brighter, breezier, and colder again on Thursday, then the risk of further rain on Friday."
The UK forecast for Friday says: "November 26 will likely bring cloud, rain, and strong winds to the northwest extending south to affect many areas through the day, some rain may fall as snow on higher ground in the north. Scattered showers likely to follow later. Feeling rather cold, accentuated by strong winds with coastal gales possible in the northwest."
Nick Miller BBC Countryfile
He has the UK forecast for the week and says: "We are very much in the blue as we start a new working week, and that does mean there is going to be frost, but temperatures will rally going into Tuesday.
"By Wednesday, temperatures are coming down again and on Thursday there will be plenty of sunshine. There will be some wintry showers in northern Scotland, a few in the east and west but most places dry and sunny. It is colder and more of a wind chill.
"There is some uncertainty towards the end of the week and into the weekend, but we could see low pressure coming down bringing wetter and windier weather. We may see some snow to lower levels, especially in Scotland. It will be just a few degrees about freezing, but not usual for the time of year."
The long range forecast
The Met Office long range forecast for the UK goes as far as Monday, December 20, and is forecasting cold spells.
For the end of this week up to Sunday, December 5, it says: " High pressure is likely to sit to the south or southwest of the UK, so rain and showers are more likely in the north, these could be wintry on high ground and perhaps at lower levels at times. Likely drier at times in the south and rather cold at times, with overnight frost likely.
For the forecast from Monday, December 6 to Monday, December 20, it says: " A generally northwesterly airflow looks set to continue for much of this period, with the most changeable conditions likely to be in the north of the UK.
"Showers or longer spells of rain and possibly strong winds are likely across the north, become increasingly likely further north, these interspersed with periods of more settled weather. In the south high pressure is likely to remain close by, giving a good deal of settled and dry weather.
"Temperatures will be varied overall with longer mild spells being punctuated by shorter colder spells, with some wintry weather also possible with a risk of snow and ice in the north. During any clear, calm spells, overnight frost and fog are likely."
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