The bushfire started at Schmidt Road in Brimpaen about 2pm yesterday and has spread across 53 hectares, encroaching on the national park.

Country Fire Authority operations officer Ian Day said 80 firefighters had the blaze under control.

Two planes and a helicopter were also dropping water on the blaze.

``At this stage it looks like we have got the fire stopped prior to it going into the Grampians National Park,'' Mr Day said.

``But we're not expecting good weather.

``We've got very high winds and warm temperatures.''

Mr Day said crews were using bulldozers to clear scrub and put a break around the perimeter of the bushfire.

There was no current threat to homes but residents in the area had been warned to expect smoke.

Wind gusts of up to 75km/h, combined with significant fire fuel loads across Victoria, would create a serious fire risk, the authority said.

Bureau of Meteorology senior forecaster Peter Newham said winds near the Grampians were likely to ease overnight but would strengthen this morning with gusty conditions in the afternoon.

Rain was also forecast in the area and temperatures should ease, ranging in the mid-20s, Mr Newham said.

``Hopefully (the rain) helps and it is not going to be as hot as it was today,'' he said.

CFA chief officer Euan Ferguson warned people to keep informed about fire conditions.

``We are expecting conditions to be warm tonight with wind picking up Sunday morning, especially in the western part of the state,'' he said.

``Tomorrow, those conditions will intensify with a dangerous combination of high winds and very dry fuel loads.''