Royal Wedding weather ‘almost perfect’ for Meghan and Harry’s big day amid spring scorcher hitting 21C

PRINCE Harry and Meghan Markle's wedding today comes amid a spring scorcher as temperatures soar into the twenties.

In Windsor, where the Royal Wedding takes place at St George's Chapel, the thousands of spectators will enjoy wall-to-wall sunshine.

Thousands have gathered in Windsor for the Royal Wedding amid scorching temperaturesThe Met Office described conditions "almost perfect" as Harry and Megs tie the knot at noon — when temperatures will hit 18C.

But the thermometer will continue to rise to a balmy 21C by 2pm.

How the Royal Wedding has unfolded so far...

• Royal fans are descending on Windsor to catch a glimpse of the loved-up couple as they tie the knot today
• Meghan Markle spent her last night as an unmarried woman with her mum Doria Ragland at Cliveden Hall
• Prince Harry stayed at Coworth Park with his big brother and best man, Prince William
• The brothers had last night walked out around Windsor to greet fans ahead of the big day
• The bride will walk down the aisle partly by herself before being joined by Prince Charles, who will give her away
• Meghan's dad Thomas Markle will not be at the big day, still recovering from a heart operation
• Prince Harry and Meghan will be the Duke and Duchess of Sussex

Elsewhere, millions of wedding watchers can toast the Royal couple in sunshine as Britain basks under clear skies and high temperatures.

But they will also need to slap on the suncream as high levels of UV will beam down across nearly all of the UK barring cloudy spots in the far North West.

Alex Burkill, meteorologist at the Met Office, said: "After the chilly start there will be lots and lots of sunshine around.

"Temperatures will hit highs of around 22C — which is very good for this time of year and around five degrees above average.

"In Windsor it will be much the same picture for the Royal Wedding.

"They will marry at noon when temperatures will be around 18C — but this will rise to 21C by about 2pm.

"Glorious sunshine will bring with it high levels of UV, so if you're going to be outside for any length of time I would recommend wearing suncream".

Hay-fever sufferers have been told to take precautions to beat the symptoms as pollen levels will be moderate.

Harry and Meghan's wedding is the warmest Royal nuptials since the marriage of the Prince's parents Charles and Diana in July 1981.

They enjoyed dry and sunny conditions as Britain basked in highs of 24C.

The most recent Royal wedding of Prince William and Kate Middleton in April 2011 was also warm and dry, but with temperatures around 20C.

And Queen Elizabeth's marriage to Prince Philip in November 1947 was still mild despite the time of year at 14C and partially cloudy skies.

The warm weather will continue on Sunday when another cold night will break into balmy sunshine.

The Met Office's Alex Burkill added: "It will be a chilly and clear night into Sunday morning, but then Sunday is again looking like a very nice sunny day for England and Wales.