Rain's on the forecast for today's 165th running of the Melbourne Cup.

There are no New Zealand-trained runners this year, but Smokin Romans and Torranzino were both bred here.

Newstalk ZB's Melbourne Cup correspondent Donna Demaio says those heading to Flemington will need to pack their brollies and coats.

She told Andrew Dickens the weather is dominating much of the conversation.

Demaio says it's expected to rain all day and even during the race.

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