West Midlands Ambulance Service are warning people to avoid swimming in lakes, rivers and other open water.
It comes after 17-year-old Russell O'Neill died at a quarry near the Malvern Hills in Worcestershire at the weekend.
The Ambulance Service is urging people not to risk their lives.
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A drier, brighter but colder day than Thursday. Sunny spells are likely, although it will turn cloudier in the afternoon.
A generally fine and dry day. Sunny in the morning, with thickening cloud and strengthening winds in the afternoon.
A cold night, with clear spells developing for most. Tomorrow, generally fine and dry with plenty of sunshine, especially in the morning.