London is set for a wet and unsettled week as BBC Weather forecasts rain or showers on six consecutive days from Wednesday through Monday, following five official heatwaves that marked the capital's dry summer. The start of the week will be predominantly dry, with temperatures slightly above average, peaking at 25°C before the rain hits on Tuesday.
Six-Day Rain Forecast Details
BBC Weather predicts that Wednesday, August 26, will bring early thundery downpours before sunshine returns later in the day. Thursday is expected to be another unsettled day, with further heavy rain and thunderstorms interspersed with occasional sunshine. Friday will bring some sunny spells, but a band of rain is forecast to move in from the west.
The wet weather is expected to continue into the weekend. The BBC forecast shows rain and showers on Saturday and Sunday, with temperatures reaching around 23°C and 22°C respectively. Monday is also expected to remain unsettled, with rain or showers and some brighter spells. Temperatures are forecast to reach around 23°C, with an overnight low of 13°C.
Temperature Trends and Met Office Warning
The unsettled run follows a warmer Wednesday, when temperatures could reach 26°C. By Thursday and Friday, highs are expected to fall to around 24°C and 22°C. The Met Office has warned that the "heavy rain threat increases" from Wednesday (August 26), with showers and outbreaks of rain becoming increasingly widespread. While Wednesday will start with light showers and gentle breezes, the Met Office has predicted that Thursday (August 27) will have thundery showers and light winds from around 3am.
Met Office Deputy Chief Forecaster Mark Sidaway said: "While many areas will see dry and increasingly warm conditions at the start of the week, attention is turning to the potential for heavy rain and thunderstorms from Wednesday onwards. As warmer and more humid air moves north across the UK, there is an increasing likelihood of some heavy rain developing. Some places could see 20 to 30mm of rain in just a few hours, while there is also the potential for higher totals where thunderstorms repeatedly affect the same locations."
London 7-Day Forecast According to BBC Weather
- Tuesday, 25th August: Cloudy with sunny spells. High 24°C, Low 16°C.
- Wednesday, 26th August: Thundery showers and sunny spells. High 26°C, Low 17°C.
- Thursday, 27th August: Heavy rain and thunderstorms with occasional sunshine. High 24°C, Low 15°C.
- Friday, 28th August: Sunny spells followed by rain moving in from the west. High 22°C, Low 15°C.
- Saturday, 29th August: Rain and showers. High 23°C, Low 15°C.
- Sunday, 30th August: Rain and showers. High 22°C, Low 14°C.
- Monday, 31st August: Sunny spells with showers. High 23°C, Low 13°C.
The forecast indicates that after Monday, conditions may begin to stabilize, with Tuesday, 1st September, seeing sunny intervals and cloud, and Wednesday, 2nd September, similar with highs around 22-23°C and lows around 14-15°C. Sidaway added: "The detail of which areas will see the heaviest rainfall is still uncertain, so stay up to date with the forecast this week to keep updated on the increasing risk of impactful weather during the latter part of the week."
