The forecast comes at a time when water suppliers are being “seriously pushed” to implement hosepipe bans after a handful of providers took steps to combat the impacts of the United Kingdom’s protracted dry weather.
At the end of the following week, though, a region of high pressure will rise into the south and southwest of England, bringing even higher temperatures.
On Monday, high temperatures are expected to reach 28C (82.4F), with an increase to 29C (84.2F) on Tuesday.
The Met Office predicts that by Wednesday, portions of the south could reach 31 degrees Celsius (87.8 degrees Fahrenheit) and by Sunday, they could reach the middle 30s.
In the northwestern regions of the United Kingdom, wetter conditions are anticipated as rain-bearing fronts make modest progress against high pressure.
“Next week, this area of high pressure will remain, and temperatures will continue to rise,” said Alex Deakin, a forecaster from the Met Office.
“This time, Spain and Portugal are not experiencing extreme heat, but due to high pressure and sunshine, temperatures could reach the low 30s in the south and the mid-20s in eastern Scotland by Wednesday.
Despite the forecast heatwave, it is highly improbable that the United Kingdom would experience temperatures comparable to July’s record-breaking highs when thermometers in some locations reached 40 degrees Celsius.
August temperatures are typically lower than July temperatures since the sun is lower in the sky and there are fewer daylight hours.
According to the Met Office, it is too early to tell how long the current heat wave will endure, but there are signs of a return to more variable temperatures later in the month.