Councils around the region have enacted their heatwave plans as temperatures are expected to soar to the high 30s and low 40s in towns including Mortlake, Hamilton, Casterton and Camperdown. 

Areas along the coast are expected to beat the heat today, with Warrnambool forecast to reach a top of 29, while Port Fairy is only expected to reach 25. 

However, the mercury will climb in Warrnambool tomorrow when a top of 34 is forecast. 

Corangamite Shire’s health alert said high temperatures had the potential to cause heat stress and significant health impacts and reminded residents to exercise extreme care.  Residents are also urged to check on older, sick and frail people who may need help coping with the heat. 

A low-pressure system is expected to reach Victoria on Monday, bringing milder maximum temperatures between 25 and 33 degrees.