Around 36,000 runners took part in yesterday's London Marathon as elite athletes to fun runners braved the 26 mile course . Mo Farah vowed to return to the race after enduring a disappointing debut.
Paralympic champion David Weir is hoping to make history by winning a seventh title at the London Marathon in the wheelchair race. Weir, nicknamed the "Weirwolf", equaled Tanni Grey-Thompson's record of six in 2012, but finished fifth last year.
If you are running the London Marathon this weekend or planning to watch from the side lines here is your guide to the day's weather.
The London Marathon is set to cause travel disruption across the capital this weekend.
Ahead of the London Marathon on Sunday, we look at the best places to watch the action unfold along the 26-mile route.