The Met Office has issued a yellow weather warning for the risk of heavy rain on Bank Holiday Monday.
The warning has now been extended to cover all of the Anglia region.
The Met Office Chief Forecaster says: "Rainfall amounts are likely to exceed 15 mm quite widely, while a few places could see more than 30 mm.."
The warning is valid from 6.00am on Monday 25 August 2014 until 11.50pm.
"Heavy rain will spread from the southwest on Bank Holiday Monday. A complex area of low pressure will bring an unpleasant day's weather to much of England and Wales on Monday. The public should be aware that there may be some impacts to holiday traffic and outdoor activities."
The UK has seen its hottest day in April for nearly 70 years and temperatures in the Anglia region peaked at 28°C in the Anglia region.
Weather conditions will be mainly dry, very warm and often sunny. Isolated showers may break out during the afternoon.
We have already seen record snowfall earlier in March. Now we are in for another cold snap. How cold will it get and will it snow?