Will the hot weather make the battery of the remote control consume more power?

I will. The main reason is that dry batteries are easy to lose power at high temperature. High temperature will cause dry batteries to fail to work normally, so it won't take long for them to remain dead. In fact, it may be broken.

Influence of high temperature on lithium battery;

Temperature will affect the internal resistance, charging performance, discharging performance, safety and life of the battery to varying degrees. For lithium-ion batteries, the discharge capacity will increase at low temperature, but it will be lower at high temperature than at normal temperature, mainly because the migration speed of lithium ion is accelerated at high temperature, and the lithium electrode and hydrogen storage electrode decompose or form hydrogen at high temperature, which reduces power consumption.

However, in the low temperature environment, the activity of lithium ion is slow, and more voltage is needed to drive the battery to work normally, thus causing greater consumption of the battery.