Will it rain on William and Kate's big day? Forecasters predict heavy showers in London for Royal Wedding

By Daily Mail Reporter-Wedding day will be 'warmer than average', say forecasters -Supermarket sales soar after rush for barbecue foodsFinal preparations: Regent Street is awash with Union Jack flags ready for the Royal Wedding this Friday - but the weather forecast is threatening to put a dampener on the excitementThe Royal Wedding could be hit by heavy showers, forecasters have said as cloudier