Parents have been advised to keep young children indoors this week as forecasters predict temperatures will soar above 90F (30°C).
The Department of Health said that children under four and the elderly are most at risk from the heatwave and should stay indoors as much as possible, especially during the hottest hours of the day between 11am and 3pm.
Southern England and the Midlands are expected to be the hottest areas and temperatures are expected to reach 91F (33°C) by the middle of the week. Experts are advising to drink plenty of water to keep cool and hydrated.
Here are some vital tips on helping your toddler avoid heat stroke, dehydration and sunburn this summer.