Mourners queuing to see the Queen's coffin face frosty nights and chilly days with temperatures in the mid-teens over the weekend.
Tens of thousands of people are heading to London ahead of the Queen's funeral on Monday including dignitaries from around the world and the showers are likely to hold off after a week where there has been some heavy rain in many parts of the country.
A northerly wind has brought rain but that is now easing and allowing a high pressure system to take over which means drier but colder weather with Friday the first day since June 21 that temperatures didn't reach 20C anywhere in the country.
And for those waiting overnight in the line to see the Queen's coffin and pay their respects in Westminster Hall, they should wrap up with the Met Office predicting minimum temperatures of just 4C.
But after a cold start, Saturday should see long, sunny spells with maximum temperatures of 17C, according to forecasters.
BBC forecaster Helen Willets said: "A brisk northerly wind which brought in a lot of showers, but the rain is gradually moving, the high pressure is moving in to give a largely dry weekend but with some cool days and some chilly nights.
"In fact temperatures are tumbling away under the clearing skies. There are still some showers peppering the north and east of Scotland and eastern England but they are diminishing in number.
"Temperatures in towns and cities will get to single figures, four and fives in places and out in the countryside lower still. Perhaps not quite as chilly here in Northern Ireland, more likely here to see some patchy fog but elsewhere if you are up early enough you are likely to see the first touch of frost on the grass.
" But otherwise despite that unusually chilly start, quite a surprise for many, there will be plenty of sunshine."
In the east of England there are likely to be fewer showers but they could remain in Scotland and there is a band of rain in the north east of the country which "could push cloudier skies into Northern Ireland and the south during the day," said Ms Millets.
She added: "Still bright and sunny, just the outside chance of a shower, we are losing that really keen breeze in the east so temperatures won’t be quite as low there."
For people in the queue for Westminster Hall the Government has warned people to dress for all weather, and come equipped with food and drink to consume while they wait.
The coffin will remain in the hall for the public to view until 6.30am on Monday, ahead of the state funeral in Westminster Abbey.
UK forecast for the next 5 days
Fine and dry for most.
Today:
Most areas fine and dry with broken cloud and sunny spells after a chilly start. Cloudier and breezy across northern Scotland and eastern parts of England with a few showers.
Tonight:
Cloudier skies with a few showers across parts of Scotland, edging southwards later. Dry elsewhere with clear spells in the south, allowing a touch of rural frost.
Sunday:
Often cloudy across central parts of the UK with a few showers. Drier and brighter in the north and also the far south.
Outlook for Monday to Wednesday:
Mostly dry with sunny spells and perhaps a few light showers. Cloudier in the northwest with occasional rain. Pleasantly warm by day, cool at night with risk of fog patches.
