The new week is set to bring a wet start with a drenching on its way, according to the latest weather forecast.
The Met Office issued a yellow warning for thunderstorms for most of the UK that ends at midnight Sunday in a dramatic start to the summer.
But even after the storm clouds clear the washout should linger into Monday for some parts of the country, the national forecaster warned.
Conditions will be rainy and cloudy for much of England's north on Monday, meteorologists said.
The weather is due to be drier in the south, but showers are forecast to arrive in the south west by later in the day as the drizzly July continues.
The Met Office yellow warning was issued for areas in central and northern parts of England as well as parts of Northern Ireland and southern Scotland.
A washout of 20-33mm of rain was predicted over a period of just a few hours, along with thunder, lightning, and flooding in some parts.
A building erupted into flames in Northern Ireland on Sunday afternoon in a suspected lightning strike.
Firefighters were called to douse the massive blaze at the coffin-maker's in Strabane at around 4pm.
The Met Office's latest forecast says heavy showers across Wales and central and southern England should largely retreat to western and southern coasts to leave clear spells by late on Sunday.
Further north, conditions are set to remain mostly cloudy with showers and heavy rain in some pars.
From Monday, most of the UK is forecast to be cloudy.
Showers and some heavy rain are in store for Northern Ireland and Scotland.
Further south, Monday should bring warmer temperatures and sunny spells with fewer showers further south.
Rain is due to move into the south and southwest later into the evening.
Sun-seekers won't find much hope in the days to follow as more storms could yet hit, according to the rest of the week's forecast.
Strong winds and heavy rain are forecast for some central and southern areas of the UK from early Tuesday.
Scattered, heavy showers and thunderstorms could strike again on Wednesday, before becoming more settled from Thursday.
The Met Office's long-range forecast says conditions should settle by the weekend as drier and warmer conditions arrive from the west and spread.
However the north could still be hit with more cloud and rain on the weekend and there is a chance of isolated thunderstorms.
