A full extreme heat timetable is in place on Thursday, February 22, for Seymour, Shepparton, Warrnambool, Ballarat, Ararat, Maryborough, Traralgon, and Bairnsdale lines due to the forecast temperatures across Victoria.
Victorian Department of Transport and Planning said the extreme heat timetables were to ensure train services ran smoothly.
Passengers can download a copy of the extreme heat timetable from the V/Line website or ask for a copy from their nearest staffed station.
Extreme heat speed restrictions are enforced when temperatures exceed 36C° to reduce the likelihood of train and track faults while keeping passengers safe.
With a new timetable in place, journey times may be extended, so the department encourages passengers to allow extra time for their travels.
There will be drinking water on board trains, and passengers are also encouraged to travel with bottled water and wear cool clothing.
For the latest public transport information and network status, visit vline.com.au, ptv.vic.gov.au or check the PTV mobile app.
Real-time traffic conditions are available at traffic.vicroads.vic.gov.au or via the VicTraffic mobile app.