Forecasters have warned of thundery showers across many parts of the country as a huge wall of rain looms.
The Met Office has said in its forecast there will be 'unsettled' conditions and that heavy rain and thunderstorms are likely on Wednesday.
And this could continue to the weekend when the heaviest and most frequent showers will be centred around northwest England, as well as Northern Ireland and parts of northern Scotland.
The forecaster's weather map shows a deluge of rain could hit from 10am onwards. While most of the country looks set to hit around 23C, it's going to be interrupted by downpours.
Met Office Chief Meteorologist Andy Page said: “The UK is predominantly under the influence of low-pressure, which is continuing a showery regime, with some potentially heavy and thundery showers possible at times through the week.
“While not everywhere in the UK will experience the heaviest downpours, it will remain an unsettled and relatively cool period, in stark contrast to the heat we experienced in June.”
Latest weather maps are forecasting a huge wall of rain set to batter Britain due to a change in the jet stream which will once again influence a likely wet and windy Friday and weekend for many.
The Met Office also added that they can't rule out the possibility of more weather warnings being put in place.
In its most recent forecast, they said: "Low-pressure through the weekend is likely to shift from the southwest towards the northeast, bringing some persistent rain for many as it moves across the UK.
"There’s a chance warnings may need to be issued closer to the time, once the track of the system is more clearly defined in the forecast."
However, while it is cooler than June's record-breaking heat, temperatures remain around average for this time of year.
UK weather forecast
Today:
Central and southeast England will start fine with some sunshine. Otherwise it will be a day of bright or sunny spells and showers, the showers heavy and thundery in places. Feeling cool in the breeze, this strongest in the south.
Tonight:
A scattering of showers will continue to affect northern and western areas during the evening and overnight. Further south and east it will become generally dry with some clear spells.
Thursday:
Another day of sunshine and showers, the showers less frequent and lighter in most areas than on Wednesday, though still perhaps locally thundery in Scotland. Less breezy, so feeling warmer.
