We may be heading for the hottest day of the year, but a weather warning has been issued for heavy rain on Sunday and Monday.

The Met Office have warned of a 'band of heavy rain' and possible thunderstorms from Sunday lunchtime until Monday.

It comes as temperatures are expected to reach 21C today, although Saturday will be cloudier with sunny spells.

The Met Office are warning: "Another band of heavy rain is likely to spread northward through Sunday into Monday, with some locally torrential downpours and thunder possible.

"There are early indications that this could result in some disruption, with sudden flooding of roads, transport routes, homes and businesses possible. Please monitor forecasts through this weekend."