Weather maps show the mercury rising as high as 28C on Bank Holiday Monday for six areas of the UK. Maps generated yesterday (August 18) by WX Charts show 28C by 6pm on August 25 in Gloucestershire, Bath, Somerset, Bristol, Wiltshire and Swindon.
Elsewhere, top temperatures at the same time and date show 26-27C in the South of England and Midlands, while it looks set to be cooler in the North of England, with 20- 25C. Maximum temperatures in Wales range from 18C along the northern coasts to 27C towards eastern areas.
Scotland looks set for top temperatures ranging from 19-21C, while it’s a similar situation in Northern Ireland where 19-22C is possible, according to WX Charts.
The same weather data service also shows rain moving towards the south coast and the South West of England at 6pm on August 25. Overnight into Tuesday (August 26), the rain looks set to cover southern England and the Midlands up to the Wash and North Wales by midnight, WX Charts’ maps show.
This weekend will likely see high pressure dominating at first, with fine, dry weather, according to the Met Office.
Parts of the north east will see cool conditions while an area of low pressure looks “likely” to develop in the North Atlantic, linked to Hurricane Erin.
Although the Met Office said the timing is “uncertain”, it notes that by the time the ex-hurricane arrives in the UK, it will bring a change in the weather.
In its long range forecast, the Met Office says from early to mid-week, high pressure may become increasingly eroded from the west as low pressure and frontal systems start to roll in from the Atlantic.
This will lead to more changeable conditions, with spells of rain through the remainder of the week and temperatures likely warm or very warm to start with.
Netweather’s monthly forecast shows high pressure “just about” holding on in eastern Britain on Bank Holiday Monday, bringing dry and bright weather, with sunshine for many.
But Netweather says cloud and rain will probably arrive in western areas late in the day.
It explains: “This will be associated with a change to far more unsettled conditions as we head through the rest of August.