Another yellow weather warning has been issued for Letchworth today (September 4).

The Met Office is warning of heavy rain from 9pm tonight until 9am on Thursday.

"Heavy showers, perhaps thundery, are possible in places on Wednesday night into Thursday morning," the warning says.

The south of England, Warwickshire, London and South Wales are all expected to be impacted.

Road closures are possible, as are train and bus cancellations.

Meteorologists also said there is a slight chance of power cuts and flooding to buildings.