Melbourne has been buffeted by heavy winds this morning, bringing down trees and power lines in Melbourne's outer eastern and northern suburbs.
Bureau of Meteorology spokesman Phil King said there had been gusts of up to 100km/h recorded in some areas.
State Emergency Service spokesman Lachlan Quick said they had received about 40 calls for assistance as winds of up to 100km/h hit Melbourne.
The areas that copped the brunt of the winds were Glen Waverley, Vermont South, Essendon and the base of the Grampians in the state's west.
Mr Quick warned motorists to be careful on the roads and to take extreme caution where power lines have fallen.
Mr King said there had been wind gusts of up to 90km/h overnight and 93km/h at Melbourne Airport this morning.
The wind had dropped to 82km/h around noon, he said.
The temperature peaked at 26.8 around midday and was back to 20 degrees by 1pm.
Mr King said the cool change would cause the temperature to drop to around 17 degrees later today.