North-east Hampshire is expected to enjoy its hottest day of the year so far this Friday (July 18), according to forecasters.
Temperatures look set to soar over the next few days, reaching 27C in Farnborough and around the area by the end of the week.
But the Met Office has warned the warm weather is also likely to bring with it bursts of heavy rain over the weekend.
In London, forecasters have predicted that temperatures could reach more than 30C due to hot air being pushed north from Spain.
Swathes of sunshine are predicted for Friday and Saturday, with humid conditions and a risk of thunderstorms, before things start to cool down on Sunday.
The year’s warmest day so far was 28.7C at Writtle, Essex, on July 4.
However, that is likely to be beaten in London and the south east in the coming days, with some forecasters believing the "Spanish plume" of warm air could bring temperatures of 35C.
That would be way above Barcelona (29C on Thursday), Barbados and Venice (both 28C) or Istanbul in Turkey (27C) — and is being caused by hot, humid air pumped up from Spain, said the Met Office.
A spokesman said the Get Hampshire area was unlikely to achieve temperatures as high as in the capital.
He said: "Warm air is moving in on Friday and Saturday so the temperatures are increasing for most people.
"In the Get Hampshire area we are probably looking at 27C on Friday, maybe a bit higher.
"But it will be bringing with it the possibility of some heavy rain and thunderstorms.
"There is certainly a risk of some rain coming through with the warmer weather, and that's looking likely on Saturday, but it may manage to miss it.
"The will be fresh air following it, so next week will be a bit fresher."
Tuesday (July 15) is also St Swithin's Day, which, if folklore is to be believed, means the county should be set for a spell of 40 days of dry weather.
The old saying goes, "St Swithin's Day, if it does rain, full forty days, it will remain.
"St Swithin's Day, if it be fair, for forty days, t'will rain no more".
So based on Tuesday's weather we should have a sunny region for the foreseeable future!
We'd love to see your pictures and video of Hampshire's people and places in the sunshine. You can email them to firstname.lastname@example.org, and please include your name and where the picture was taken.