Western Power Distribution says that five thousand homes in South East Wales are without electricity because of the bad weather.
They say that properties in Swansea, Cardiff and the Valleys are worst affected.
The high number of incidents due to strong winds and heavy rain mean that they are working at ten times their usual rate.
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Swansea relieved the pressure on under-fire manager Bob Bradley with an emphatic 3-0 home victory over fellow strugglers Sunderland.
Sol Bamba was sent off after losing his cool but Cardiff hung on to claim a deserved 1-1 draw at Ipswich.
Today's rain will soon clear south-eastwards to leave a largely dry night with some long clear spells.