Some thundery showers at first. Sunnier later this week.
This Evening and Tonight:
An area of thunderstorms could give eastern counties some heavy rain tonight and through the early hours. Further west it should remain mostly dry. Staying warm and muggy overnight. Minimum temperature 13 °C.
Early rain towards Wiltshire and Gloucestershire will clear north, leaving some cloud around. This will break up later, leaving sunny spells and the odd heavy shower inland for the afternoon. Maximum temperature 26 °C.
Outlook for Wednesday to Friday:
A few thundery showers possible on Wednesday, otherwise dry with plenty of sunshine and brisk and gusty easterly winds. Becoming hot in places by Thursday. Remaining warm overnight too.
UK long range weather forecast
On Saturday a band of showery rain, with the risk of thunder, will spread erratically from the west, introducing fresher conditions. The hot and humid conditions will likely be confined to the east on Sunday. By Monday,the fresher conditions will spread to all areas. It will likely stay drier across the south and southeast though. Thereafter, as we go into early July the most likely scenario is for a continuation for warm or very warm, locally hot, and potentially thundery, weather possible for parts of the UK. There is likely to be occasional spells of dry and fine weather. Temperatures will return closer to normal after a potentially very warm or hot spell of weather at the start of the period.
During the first half of July confidence in the forecast becomes very low. It seems most probable that high pressure will be close to the north and east of the UK, with lower pressure and Atlantic frontal systems nearer the southwest. This would bring more unsettled weather over southern and southwestern parts of the UK, with some rain or showers. However, the north and east would see more in the way of drier and settled weather. Temperatures during this period are likely to be around or slightly above normal.