Met office update
UK Outlook for Thursday 15 Sep 2016 to Saturday 24 Sep 2016:
Eastern areas may remain sunny and very warm initially on Thursday, however elsewhere it will be cloudy and humid with outbreaks of rain spreading erratically eastwards, these turning heavy and thundery in places. Fresher, showery conditions with near average temperatures will follow this rain from the west through Thursday, perhaps not reaching the southeast until the weekend. The weekend is likely to bring some rain to many areas, at least for a time, perhaps with strong winds in the north, however there should also be some decent dry and bright spells. Into the following week, a drier, more settled period of weather should develop across many parts of the country, bringing some warm sunshine at times, however the far north could remain cooler and cloudier with some rain at times.
UK Outlook for Sunday 25 Sep 2016 to Sunday 9 Oct 2016:
There is a small chance of dry and settled weather across all areas at the start of this period, however the most likely scenario is that any fine, warm and sunny weather will be confined to southern and eastern areas, while northern and western parts will be cooler and windier with rain at times. As we move into October, cooler and more changeable, sometimes unsettled weather is likely to extend across all areas. Showers or longer spells of rain will move eastwards across the country, interspersed with some drier, brighter and warmer intervals. Rain will tend to be heaviest in the north and west where it could also be windy at times, while the south and east will have the best of any dry and bright spells.
http://www.metoffice.gov.uk/public/weather/forecast