Lack of rain during Autumn, winter and early spring has meant that river and reservoir levels are lower than usual in parts of the UK.
January saw large parts of the UK have less than 75% of their usual rainfall.
March saw parts of the south and Scotland having much lower falls than normal.
Unless water levels are replenished there could be droughts which could lead to hosepipe bans in the summer, water companies warn.
The Met Office predict that the end of the week will see plenty of rainfall as weather fronts will mean a return of the wet and windy weather.
Mostly dry on Tuesday & Wednesday, but heavy rain will arrive from France on Thursday bringing a more unsettled theme to the end of the week pic.twitter.com/2EDxcpwx64
— Met Office (@metoffice) May 8, 2017
The Met Office say: “Wednesday and Thursday will be warm and sunny, however rain will arrive into Friday.
“Showers will then follow through the day on Friday, and they could be occasionally heavy”.