A severe weather warning for damaging winds was issued for the region at 4am on Monday but senior forecaster Richard Carlisle said there has been nothing excessive on the weather front just yet. 

Winds have averaged 50 to 60 km/h with peak gusts of 75km/h at Mt William overnight.

Mr Carlisle said damaging northerly winds with peak gusts of 90 to 100km/h were expected to develop ahead of a cold front that will cross Victoria on Tuesday. 

The worst of the wind is expected to reach Warrnambool about midday and while easing during the late afternoon and evening, will remain possible over the south-west coast as a result of continuing showers and isolated thunderstorms.

Mr Carlisle said there was a high chance of showers in the late morning and afternoon, with about five to 15mm of rain expected across the region. 

It was 11.6 degrees in Warrnambool at 7.30am and it felt like 8.1. 

A severe weather warning has also been issued for sheep graziers, with a cold front forecast to bring cooler temperatures, showers and strong northwest to westerly winds.

There is a risk of losses of lambs and sheep exposed to these conditions.