Northern Ireland, central and southern Scotland can all expect rain on Sunday, while England and Wales will be hotter than yesterday.
Although mostly dry isolated showers are possible mainly across eastern England later.
Meanwhile, northern Scotland will be fresher with sunshine and scattered showers.
Later in the evening there may be rain across Northern Ireland, southern and eastern Scotland and possibly parts of Wales and northern England later on.
Clearer with scattered showers elsewhere tonight with showers perhaps heavy and thundery in the east.