The Met Office has warned Wirral to expect thunderstorms after the hot spell of weather.
Temperatures are expected to reach 25C on Wednesday and 29C on Thursday, making it the hottest weather of the year so far.
Atlantic air will descend and warm up as it moves across the UK and this in combination with clear skies and strong late-June sunshine.
Met Office Chief Meteorologist, Dan Suri said: “Temperatures will continue to climb through the week with a hot spell developing across much of England and Wales. From Wednesday temperatures will widely reach into the high twenties Celsius and it’ll be hot across much of the UK, especially central and southern England where we could see highs of 30 to 34 Celsius. This hot weather is expected to last until at least Friday and so heatwave conditions are likely to develop for some areas this week.”
Showers and thunderstorms are likely to break out on Friday afternoon and evening to bring a dramatic end to the hot weather on Wirral.
Although some places will miss the storms, torrential downpours could bring 30-50mm rain in a hour, with hail and lightning.
The storms will slowly clear northeastwards on Friday night, perhaps not clearing northeast Scotland until Saturday morning.
Deputy Chief Meteorologist, Matthew Lehnert, said: “By Thursday, Northern Ireland and Scotland will join the rest of the country in seeing a shorter lived spell of warm and sunny weather, but we’re also seeing an increased risk of thunderstorms towards the end of the week which is expected to bring an end to the very warm and sunny weather.”