If the forecast remains unchanged, the weather will be mostly dry with sunny spells and turning increasingly warm again.
But Wimbledon is no stranger to summer heat.
The hottest day recorded during Wimbledon fortnight was on 1 July 2015 when temperatures peaked at 35.7C in nearby Kew Gardens.
During the infamous summer of 1976, on 27 June, night-time temperatures didn’t fall below 20.8C.
The All England Club has a heat rule in place now and players are allowed to request a ten-minute break when the heat stress index reaches 30.1C.
The heat stress index is similar to the wet bulb global temperature. It measures not just the air temperature but takes into account humidity, radiant heat from the sun and the court surface temperature.
The heat rule has already been triggered in the qualifying rounds this week.
