How will the weather be in the UK , probably, next 15 May-8 June?
I live in Scotland and usually at that time it is very changeable, we can have it very hot one day with pouring rain the next week but in general it is not very warm at that time of the year, England is usually drier and warmer than Scotland and Ireland
Warm with a chance of rain
Pleasant i guess.
Wind, rain, snow, sunshine, gales, heatwave. Often all in the same day. BTW. You should probably figure out that the Isle of Man and Ireland aren't in the UK before you go, unless you want to take your teeth home in a plastic bag.
Anything between 55 and constant rain and 75 and sunny. Prob a mixture of both. London area is always much, much better than the rest of the B Isles.