Temperature is one of the underappreciated senses for maintaining our well-being. Being too cold reduces our physical dexterity and mobility, as well as eventually leading to hypothermia. Meanwhile, our experience of being too hot will tend to come from the appliances in our lives which are dangerous to touch.
Autistic people will often be hyposensitive to temperature, so that they respond less to temperature cues. This can mean that they are unaware of temperature changes, for example, wearing too little clothing when it is snowing. At the same time, it can also lead to sensory seeking behaviour where the person will want to touch hot items, even if the heat is blistering.
As it is more difficult to study the sense of temperature, there is not much research on this topic, even outside the context of autism.