Mourners will endure heavy rain as they queue to be the among the first pay their respects to the Queen in London this week.
Her Majesty's casket left behind a beautiful and sunny Edinburgh and will be met by damp and grey conditions by the time it reaches London.
Tens of thousands of well wishers are expected to queue in London to make their final farewell to the monarch amid the possible downpours.
The Met Office predicts it will be raining when Her Majesty's coffin arrives in England by plane on Tuesday night.
Temperatures are set to drop as low as 7C overnight as the scorching summer finally moves into autumn.
Heavy bursts of rain are expected for large areas of southern England tonight and possibly through to Wednesday as temperatures become chilly, according to forecasters.
But the weather will return to drier conditions on Monday, the day of the Queen's funeral, with some sunny spells throughout the day.
Meteorologist Simon Partridge told the Mirror: "It looks like a fairly damp evening tonight.
"For much of the night, we could see outbreaks of rain on and off with the possibility of heavier outbursts at times.
"Through the rest of the week, it will stay dry but overnight, like in Edinburgh, it could turn a little chilly.
"We could very well see temperatures down to 7 or 8C overnight so for those queuing up at the end of the day after finishing work, they will see reasonably chilly conditions throughout the evening."
Rain is expected to linger across the capital until mid morning on Wednesday, according to Mr Patridge.
It brings hopes for further rainbows like those seen over Buckingham Palace when the Queen passed away at Balmoral on Thursday.
Following the downpours, conditions are expected to be mild but humid and muggy as a result with overnight temperatures of 15 to 16C on Wednesday.
"By the afternoon and by the time we get the Queen laying in state tomorrow evening, it will be dry with some reasonable evening sunshine to end the day," the weather expert added.
A funeral will be held for Queen Elizabeth II at Westminster Abbey on Monday, September 19.
Until then, crowds of people will be waiting for hours outside the Palace of Westminster waiting to say their goodbyes to the former monarch.
And though forecasts about the weather conditions for Monday's funeral are still being drawn up, the Met Office has indicated that patch cloud with some sunny spells is the most likely scenario for Monday with the possibility of some sunshine.
The sun is expected to be shining over St Giles' Cathedral in Scotland's capital at 5pm on Tuesday, when the Queen's coffin is scheduled to leave for Edinburgh Airport.
But rain is forecast for its arrival at RAF Northolt in west London this evening, where it will be accompanied by the Princess Royal and her husband, Vice Admiral Sir Tim Laurence.
