http://www.bbc.co.uk/weather/2635167#outlook Monday 18 January—Sunday 24 January
Cold at first, but turning less cold later.
The week will get underway with the stubborn block of cold air across Scandinavia continuing to prevent Atlantic weather systems from making any great progress eastwards across the UK.This means that many eastern and central parts of the UK will start the week on a very cold but mainly dry note, Further north and west, weak weather fronts will try to push in and introduce outbreaks of mainly light and patchy rain, that will fall as snow at times, chiefly over higher ground. Central Scotland and the higher parts of northern England look most at risk of receiving some snow during Monday. In the far west, across Wales, Northern Ireland and the far southwest of England, we can expect slightly less cold, but very damp and cloudy conditions to prevail through Monday.
By Tuesday, high pressure is expected to reassert itself across the majority of the UK, with largely dry and cold weather conditions dominating proceedings. The best of any sunshine will most likely be across eastern areas. Overnight frosts are likely to be harsh, again more especially in eastern areas. Overnight freezing fog patches are possible just about anywhere. Through Thursday a weak weather front is expected to make some eastward progress across the UK, turning conditions cloudier, with the threat of some transient snowfall. Friday is expected to mark the transition back to a westerly air stream and less cold conditions as a weather front and its associated rain sweeps in from the Atlantic, ushering the cold air away to the east.
The following weekend should bring a mixture of sunshine and showers to most parts, with a brisk westerly wind in the west and northwest.
Monday 25 January—Sunday 31 January
Less cold, but still unsettled at times...
For the final week of January, forecasting models and tools are indicating the likelihood of a return to a chiefly westerly Atlantic airstream. Pressure looks like being lower towards the northwest of the UK for much of the period, with signs that pressure may build across southern or southeastern parts of England at times. This scenario would mean that some windy spells can be expected, with a mix of sunshine and showers for much of the period.
Wind strength and the frequency/potency of showers are always likely to be greatest across northwestern areas of the UK, with southeastern areas experiencing the best of any lengthier dry interludes. Temperatures look like they'll be around about the norm for the time of year, with overnight frosts likely just about anywhere in the UK, although perhaps more frequently in the south where winds are generally expected to be lighter. Some early morning patchy fog is also likely on nights when winds fall light.
Monday 1 February—Sunday 14 February
Nothing out of the ordinary...
Looking further into the future, at time of writing the latest computer forecasting model output suggests a continuation of the themes discussed for the last week of January. Low pressure systems likely to move in from the Atlantic across northwestern areas of the UK, with pressure building over the southeast now and then. This will most likely translate as spells of wet and windy weather, interspersed with quieter interludes. The best of any dry weather is most probable across southeastern parts. Temperatures are expected to be around average, with overnight frosts possible at times.
Next week
With the meteorological winter drawing to a close at the end of February, will there be any sign of another cold spell of weather before we move into spring?. Find out next week.