BBC monthly outlook
Summary
Briefly chilly, then turning milder and wetter
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Saturday 19 October – Sunday 27 October
Changeable weather. Wettest in the north.
This weekend, much of the UK will have a mixture of bright spells, banks of cloud and a scattering of showers. However, eastern Scotland and North East England are likely to have more prolonged cloud and rain for a while on Saturday. Temperatures will tend to fall through the weekend, with Sunday feeling quite chilly as a brisk northerly wind develops. Scotland and Northern Ireland are then likely to have a cold and clearer night on Sunday with a frost in places. Into the coming week, the weather will be changeable. The early part of the week will be generally drier, brighter and calmer than it has been, thanks to a high pressure ridge toppling south-eastwards across the country. However, central and southern areas could have a rather cold night on Monday with patchy fog.
The middle of the week is likely to see low pressure to the north-west, drawing in milder air from the south, with some wet and windy weather for western and northern parts of the UK. Towards the end of the week, the forecast details become very uncertain. Most likely is for a battleground to set-up between colder air developing over northern areas of the UK and mild air lingering in the south. On the boundary of the colder and milder air, there is the potential for some very wet weather, perhaps even with some snow mixed in on the northern flank of any bands of rain. However, there is much uncertainty currently over where this boundary will be.
Monday 28 October – Sunday 3 November
Potentially cold at first. Near normal rainfall
A potentially rather cold start to the week with high pressure to the north bringing chillier northerly or easterly winds for a time. The extent of the colder weather is uncertain at present but the northern half of the UK has a greater risk than the south. Some night frosts appear likely with some wintry precipitation possible but with the highest risk for the north and over hills. Later in the week, we should see any cold weather receding, allowing temperatures to recover near or a little above average. There is likely to be some rain at times. Overall, rainfall amounts are likely to be near to the seasonal average for most. There is a chance that milder air moves in much more quickly than expected from the south which would bring a much milder week overall to the British Isles.
Monday 4 November – Sunday 17 November
Turning milder and eventually wetter again
For the first half of November, latest indications are for low pressure areas to be often located to the west or northwest of the British Isles while a high pressure area becomes located over central and eastern Europe. This is a mild scenario for much of the UK with winds often expected to be from the south or west. However, the low pressure areas are likely to bring bands of rain at times and the wind is likely to increase too.
Western and northern areas of the UK are favoured to see the most frequent wet and breezy conditions. Rainfall should stay nearer normal for November over central and eastern areas of England. Overall, we see a suppressed risk of any significant wintry weather through this period. The main risk is that low pressure develops more strongly over the UK, bringing wetter and windier than average conditions.
Further ahead
We will take another look to see if we can still expect a changeable weather outlook through the coming weeks.
https://www.bbc.co.uk/weather/outlook
Originally Posted by: Gavin D