There are warnings for people to avoid swimming in lakes, rivers and other open water.
It follows the death of 17-year-old Russell O'Neill who lost his life over the weekend, swimming in a quarry near the Malvern Hills in Worcestershire.
Charlotte Grant reports.
More top news
Nottinghamshire Police has charged a 23-year-old man with murder following the death of a 16-year-old girl.
Derby County defender Jake Buxton has today joined fellow Championship side Wigan Athletic for an undisclosed fee.
Rain overnight, clearing Wednesday morning. Showers possible by the afternoon.