While Monday (August 22) is set to remain cloudy and breezy, temperatures are expected to soar to 30 degrees on Tuesday with just a light wind.
A spokesperson for the Met Office said: "[Monday night] dry with variable amounts of cloud and a few clears spells. Feeling rather humid with light winds.
"[Tuesday] dry with a fair amount of cloud early on, with some fog likely in some places. Then, becoming quickly very warm and sunny across all areas with light winds. Maximum temperature 29 to 30 degrees."
Don't forget to take a look at our pick of the best things to do in and around west London during a heatwave.
Wednesday is looking mostly sunny according the Met Office but there is a chance of showers and thunderstorms in London and the south east overnight and during Thursday and Friday.
Temperature are expected to remain high until the bank holiday weekend.