SCOTS will have a final chance to make the most of the scorching weather today, before a slow decline in temperatures and “violent” thunderstorms bring a dramatic end to the heatwave, forecasters say.
After weeks of temperature records around the country, humidity and the resulting storm clouds will raise the threat of floods in some parts of the UK.
Aviemore delivered the highest temperature in Scotland again yesterday, reaching 29.6C, just a fraction behind the record for the year so far, of 29.7C in Cupar on Thursday.
Forecasters say today’s high is likely to be closer to 28C as the country begins to slip back into mid-to-low twenties and as humidity rises, making for a sticky and potentially stormy first half of the week.
The UK as a whole is expected to reach its peak today, with temperatures down south as high as 34C, before humid air from France crosses the Channel and moves north to hit Scotland tonight into tomorrow.
The break in the temperature and some rain may help combat a spate of grass fires being tackled across the country, as well as reduce the health risks to the young and elderly.
Met Office forecaster Fraser Ralston said a number of monitoring stations contended for the top temperatures in Scotland this month. Grangemouth hit 29.3C on 9 July, Cupar climbed to 29.7C on Thursday, and Cromdale in Moray reached 29.6C on Saturday, matching Aviemore on Sunday.
He said: “[Today]we might not be far off equalling the record set over the last few days, but there is a lower chance.
“Generally the trend is a gradual reduction in temperature. It will be very warm and increasingly humid on Tuesday and Wednesday.”
A 24-hour rain warning has been issued for tomorrow for all of Wales and much of England, with a chance of flooding.
Brendan Jones, a senior forecaster with Meteogroup, said: “With the high temperatures, it will be almost tropical in the way it feels. Then from Monday night, some very violent weather could be kicking off, with thunderstorms across quite a lot of England, Scotland and Wales. We will see quite lively storms.”
The current heatwave has been the most prolonged since 2006, but has not exceeded that of 1976, when temperatures soared above 32C for 15 days.
Meanwhile, the Scottish Government issued fresh heat health warnings. Even as temperatures decline in the next few days, rising humidity will make it still feel uncomfortable for many Scots.
Health secretary Alex Neil said: “Those with young children and elderly relatives should take extra care to make sure they have everything they need to stay safe in the sun.”
Today: Very warm with hazy sunshine, but clearer near the east coast and mostly dry. Possible isolated thundershower in south-west. Temperatures 18C in east, mid-20s in west.
Tomorrow: Humid and cloudy, with thunder and heavy downpours likely; 18-24C.
Wednesday: Humid with thundershowers and temperatures of 18-22C.