With temperatures expected to move above 40 degrees early next week RACV have released statistics which put the Border city at number 11 in Victoria for call outs this year.

Roadside assistance patrols were called to rescue eight Wodonga children from locked cars in the past 12 months, just six below the Melbourne suburb of Frankston which topped the list.

Across the state an average of three children a day are saved from cars by the state car assistance company.

This equates to 843 calls to help rescue young children locked in vehicles, the majority of which the RACV said were accidental.

The statistics have been released as part of RACV's Check Keys - Check Kids campaign, designed to prevent parents and carers from accidentally locking children in hot cars.

Other North East towns which registered on the statistics were Wangaratta with seven call outs and Bright with just two children rescued.

Emergency roadside assistance patrolman Steven Kendall, who has rescued hundreds of kids from cars over his 30-year career with RACV, said accidents happen.

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"But it is important that parents remain calm if they end up accidentally locking a child in a car," he said.

"Knowing the dangers vehicle lock-ins pose to young children, RACV prioritises these call-outs as urgent and allocate the job to the closest RACV crew.

"Once on scene, we attempt to unlock the door with our expertise and tools, but depending on the temperature outside and the make of the vehicle, we may end up breaking a window to get the child out."

Public policy general manager Bryce Prosser said vehicle cabin temperatures can more than double in the hotter months. "RACV tests show that car interiors can reach more than 70 degrees in just minutes when the outside temperature is only 30 degrees," he said.

"Especially around this time of year, it's easy to become distracted and forget where our car keys are.

"A momentary lapse in concentration combined with sophisticated vehicle locking technology and soaring summer temperatures is a recipe for disaster. Research shows that younger children are more sensitive to heat than older children and adults, as their body temperatures rise five times faster. This means they are at higher risk of dehydration and heatstroke when trapped in a hot car."

The Bureau of Meteorology is forecasting the Border will move into the mid 30s over the weekend and reach a top of 41 on Wednesday.