Country Fire Authority crews have been called to incidents at Glenfyne, Purrumbete and Casterton this morning.
The latest fire was reported on Purrumbete Estate Road, east of Camperdown about 12.10pm.
Three units attended the grass fire and brought it under control within 20 minutes. It has been declared safe
The CFA warned residents in the Koallah, Weerite and Pomborneit.areas that smoke may be visible from nearby communities and roads.
It urged people to monitor conditions and check their bushfire survival plan.
"If you do not have a plan, decide what you will do if the situation changes," the authority advised.
"If time permits, check your neighbours to see if they are monitoring conditions.
"If you are experiencing any symptoms that may be due to smoke exposure, the Department of Health advises people to seek medical advice or call Nurse on Call on 1300 606 024."
Two tankers were also called to sparking powerlines on Maddens Bridge Road Glenfyne at 10.45am, with the situation declared safe at 12 noon.
The CFA has also advised that there is smoke activity in the Casterton area from a previous fire along the B Line track approximately 15 kilometres west of the town. Crews are in attendance and monitoring the situation.
The temperature hit 40 degrees at Warrnambool's airport at 12.30pm