There is good agreement to 144hrs which is good, with the forecast and pattern agreed up to that point if you look at the ECMWF and UKMO Model.
There could be rain and snow in Scotland for Friday and Saturday. And Friday has heavy rain for S SE and ESE England on this coming Friday.
Chilly for much of the UK on Saturday to Monday (3 days with winds blowing in from the NW then North.
What the Models do for after T144 is up in the air at the moment. Wintry showers for Scotland on Saturday as well quite possible mixed with rain at lower levels.
Will the Eastern Mid North Atlantic High stay over the Western UK on Monday to Wednesday next week- GFS says No, but ECMWF says yes. Will this forecast upgrade or downgrade for cold weather fans. The 12z ECMWF and 12z UKMO has a blocked out Low Pressure for the Midwest North Atlantic to our WSW and South southwest with UK and NE Atlantic High Pressure hold firmly- to T144 at Monday next week- ECMWF has cold Northerly over UK even on Wednesday/ Thursday next week while today’s 12z GFS brings the Low P NE across the UK for same time period, then drags the cold Northerly as it passes SW to ENE.
Climate is warming up, Scotland and N Ireland and North England still often gets some Winter frost, ice and snow, November to March, but the SE and South UK including S Central England and Wales, together with the West and North through the year, they sometimes get more rain than London and S SE England, where some longer dry fine spells without much heavy rain is seen every year.
The North Atlantic Sea often gets some much Colder Wintry conditions from November to March Months, and Mild SW and South winds tend to be more frequent over the East and SE of North Atlantic Sea, as the Azores High tends to stay in charge.
With this warmth and heat, the Central and South UK has become mostly free of snow and frost.