The Met Office has announced a yellow warning of rain and transient hill snow will spread northwards later on Sunday.
Rain will become heavy and persistent for a time before easing from the south during Monday morning. 15-25 mm of rain is likely widely, with 30-50 mm possible locally in parts of South Wales. Some temporary snow is likely over the higher ground early on Monday morning, mainly in Wales and above 400 m, where 2-5 cm could accumulate before snow turns back to rain. A separate warning is in force to cater for higher rainfall amounts and the potential of some medium impacts across southern parts of the Southwest Peninsula.