Fine initially, but becoming rather cloudy from the west, with outbreaks of rain spreading eastwards throughout the night, perhaps seen more widely towards dawn. Staying warm and muggy with light winds. Minimum temperature 14 °C.
Wednesday:
Brightest in the southeast, with the greatest chance of some sunny spells here. Cloudier elsewhere, with periods of mostly light rain, easing later. Generally warm and rather humid. Maximum temperature 25 °C.
Outlook for Thursday to Saturday:
Mostly fine with some sunshine. Turning increasingly hot and humid towards the weekend. Staying mainly dry, but with the possibility of thunderstorms on Friday and Saturday.
Updated:
UK long range weather forecast
Probably a north-south split at the start of this period. In the north, changeable and often rather cloudy with showers or some longer spells of rain, perhaps heavy at times, and temperatures near normal. In the south, mainly fine and dry with temperatures well above normal, albeit with a small risk of a few showers or thunderstorms at times. Into late June, high pressure may begin to build with conditions becoming more widely dry and settled. Temperatures are likely to be above normal for many areas.
Updated:
High pressure patterns are slightly more likely than low pressure patterns during this period, meaning settled and drier than average conditions are most probable. However, there is still a chance of some changeable, more unsettled conditions could develop at times. Temperatures are likely to be above normal, with a greater than normal chance of hot conditions developing.