Thousands of men and women will be heading to Clapham Common on the evening of 14 May to take part in this year's London MoonWalk.
More than 15,000 people will be setting off from Clapham Common for this overnight walk through the streets of London, raising money for Cancer Research.
The participants choose between walking a full 26.2 mile marathon distance or a half-marathon.
Check the London weather forecast before taking part in the power-walking marathon or if you are supporting those taking part.
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14 May - Will the weather be kind to those taking part in the London MoonWalk?
The MoonWalk has been a popular fixture in London since 1998, with over 15,000 participants taking part last year to raise millions for breast cancer causes. The start and finish is at Clapham Common with the route taking in many of London's top sites including the Big Ben, Buckingham Palace, Tower Bridge and the London Eye.
This year the participants will be moving their feet to the beat, with a carnival celebration for Walk the Walk's 20th birthday.
Competitors will be hoping for better weather than in 2014 when wind and rain accompanied them through the streets of London. So, whether you are participating in the race or going along to support the walkers, check the London weather forecast forecast before setting off.
For further information about the event, visit the MoonWalk London website.
You can check the weather forecast for other events through the Events Calendar.
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