Melbourne braces for more thunderstorms after week of hot weather

Heavy rain and thunderstorms will batter Melburnian commuters as wild weather moves across the state ahead of a cool change.

A severe weather warning for damaging winds, heavy rainfall and flash flooding was updated at 12.30pm on Friday to include Melbourne, Frankston, Bacchus Marsh, Rosebud, Ballarat and Geelong.

However, the hot weather is set to return next week.

Almost 10,000 Victorians remain without power on Friday afternoon, after storms ripped through the state on Thursday and into the evening.

There were 2,577 AusNet, 7,134 Powercor and 106 Jemena customers affected by blackouts as of 12.45pm.

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Geelong, Cape Otway and the Surf Coast were battered by heavy rain on Thursday evening, with 40 to 70mm of rain recorded around Geelong.

State Emergency Service volunteers have received more than 650 calls for help in the past 24 hours, as homes, buildings and roads were flooded.

The wild weather comes as disaster assistance is announced for Ballarat, East Gippsland, Moorabool and south-west Victorian residents after floods and storms on 5 January.

The communities will receive financial support via the commonwealth-state disaster recovery funding.