V/Line trains will be running slower than normal on Monday, with an extreme heat timetable in place on the Seymour and Shepparton lines.
Altered services may run on the lines, which stop at Donnybrook.
In a statement, V/line said Extreme heat timetables are implemented when temperatures exceed 36 degrees in order to reduce the likelihood of train and track faults, while also keeping passengers safe.
“During extreme heat trains run at slower than normal speeds and may depart and arrive at different times, passengers are encouraged to allow extra time for their journeys,” the statement said.
“There will be drinking water on board trains and passengers are also encouraged to travel with bottled water and wear cool clothing.
“Please check the V/Line website at vline.com.au prior to travelling, to plan your journey.”