Hundreds of people are expected to brave the gloomy rain and line the streets of Pinner for the annual Pinner Fair.
Family and friends will enjoy food stalls and fair rides in the village today (Wednesday, May 28).
The 700-year-old event is run by The Showmen’s Guild of Great Britain and was enjoyed by hundreds of revellers last year.
Harrow Council have confirmed that the roads closed will be Bridge Street, Cecil Park, parts of Chapel Lane, Church Lane, George V Avenue, Grange Gardens, High Street, Pinner parts of Love Lane, Marsh Road, Paines Lane, School Lane, parts of Waxwell Lane and West End Avenue.
There will be signs on display as waiting restrictions are expected on many surrounding roads.
The event is protected by a royal charter, granted in 1336, which states that if the fair does not take place one year the village will lose the right to host it subsequently, it is expected to run from 10am this morning to 12pm.