Weather warnings for heavy rain in parts of UK to put end to sunny spell

South-west England, south Wales and eastern parts of Northern Ireland expected to get heavy rain as thunderstorms also roll in

Weather warnings for rain have been issued across the UK on what is expected to be the hottest day of the year so far.

Temperatures could reach as high as 27C on Sunday, but the recent warm and sunny spell could disappear by the end of the day.