The National Lottery celebrates its 20-year anniversary this year.
Wales’ biggest-ever winner is former lorry driver Les Scadding, from Newport, who scooped a £45.5m EuroMillions win five years ago.
Now the fortunes of some of our biggest Lottery winners will be followed in a new four-part TV series on ITV Cymru Wales.
'The Welsh Millionaires’ Club' begins next Monday at 8pm.
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The heaviest bursts are expected in the south and east, with some western areas either remaining dry or becoming dry by dawn.
Many places will start dry, but rain in the southeast will spread to most for a time overnight.
The family of Isaac Nash who went missing after being swept out to sea last summer have presented a cheque for £10,000 to the RNLI.