27 May, 2017
Temperatures could hit a sweltering 30C today in southern Britain and Scotland, which would make it the hottest day of the year so far.
A severe weather warning has been issued for heavy rain in Kent on Sunday and Bank Holiday Monday.
The mercury is set to hit the "low 30s" as a tropical blast moves in on Friday and Saturday leaving a "chance" of smashing the 32.8C May temperature record from 1922.
The fine spell will break down through the weekend as heavy showers and thunderstorms move from south-west to north-east across the country on Saturday.
Over the next 24 to 36 hours, high pressure will gradually move away to the east today allowing an area of low pressure to develop and move up the western side of the United Kingdom tonight and tomorrow.
"But there are some changes on the horizon".
The Met Office has issued the yellow warning to cover the potential risk from the heaviest downpours which could lead to surface water and isolated river flooding, disruption to transport and hard driving conditions. If you see someone else in danger in the water, fight your instinct to go in and try to rescue them yourself - instead call 999 or 112 and ask for the Coastguard'.
Sunday will be fresher with mostly cloudy conditions and a high of 21C.
But please keep your brollies at hand if you live in Ireland, south-west England and Wales, as there will be showery outbreaks of heavy and thundery rain later.
Around 30mm to 40mm of rain could fall in a short time in these areas, creating a risk of surface flooding, he added.
However, temperatures tomorrow are still expected to rise to the mid-20s Celsius, possibly high-20s Celsius in the east.
"This will be followed by cooler conditions on Sunday and Monday, although still with some fine weather in places".
