BBC Weather Watchers/Frank McCThe UK could see its hottest day of the year so far on Friday, with temperatures of 24C forecast in parts of the country.
South and south-eastern England are expected to see the best of the weather, with highs of 23C or 24C, while Northern Ireland, Scotland and Wales could reach 21C or 22C.
To become the hottest day of the year, Friday would need to see temperatures higher than the 23.7C recorded on 4 April in Otterbourne, Hampshire.
The continued warm weather comes as fire services continue to warn of the risk of wildfires.
Recently the warmest weather has been seen across inland parts of Scotland and Northern Ireland.
On Thursday, the temperatures reached 21.8C at Castlederg in Northern Ireland on for the first time this year and Aboyne in Scotland reached 22.8C.
While daytime temperatures are above the mid- April average of 11C to 14C, the nights have been chilly.
BBC Weather Watchers/Wendy WindblowsThe far north of Scotland will be cloudier on Friday with some patches of light rain.
Saturday brings the prospect of rain but there will still be lots of warm sunshine, with temperatures in the east and south-east of England potentially reaching 22C or 23C.
It will be slightly cooler in northern England and Scotland and significantly cooler by about 6C or 7C in Northern Ireland at 15C or 16C.
But cloud will arrive from the south-west bringing the chance of showers. Showers will move northwards into Scotland during the afternoon as cloud cover becomes more widespread.
Sunday is expected to be a drier and cooler day with variable cloud and a few scattered showers moving in from the west, these mainly across northern and western areas.
Getty ImagesFire services continue to warn of wildfires across the country.
London Fire Brigade (LFB) warned against using barbecues, saying the wildfire risk has increased due to low rainfall.
According to LFB, the service saw a 48% increase in calls last weekend compared with the same weekend last year.
In Northern Ireland, firefighters have tackled more than 200 wildfires in recent days, most of which were started deliberately according to the fire service.
Meanwhile in Scotland, the fire service has urged the public to "act responsibly" as an extreme wildfire warning remains in place across the country.
