The city basked in glorious sunshine as temperatures soared to 27 degrees to make it the hottest day of the year so far in London over the weekend.
Parks heaved with Londoners enjoying the sunshine as forecasters said it was the first of what would be a "scorching summer" set to come.
However, sunny spells are already predicted to end abruptly, with the Met office saying temperatures will stoop much lower on Monday (May 9) evening.
A spokesperson said: "Rather cloudy across the region overnight with some heavy and thundery showers clearing north, but perhaps returning to southern coastal areas by Tuesday morning.
"On Tuesday, further heavy and thundery rain or showers likely at times across the region, but also a few drier and brighter spells."
The outlook for the remainder of the weekend included some scattered bright spells, but also showers.
By Friday, the city is expected to get cooler due to winds turning to the northeast and strengthening.
The end of April saw a bizarre turn of temperatures as commuters captured videos of snowfall and sleet , followed by predictions of a scorching beginning to May.