Backlight in a car with an informative oled 0.96 screen

Hello everyone,ESP32 board, firmware 0.15.3, can you tell me how to display the temperature on a 128x64 0.96 display when the device is in sleep mode? In the I2C/SPI 4 Line Display Usermod ALT library, I can only display the date and time, but is there a way to add temperature and humidity? or display the temperature outside the car and inside the car. I have a DHT22 sensor in the car and a DS18B20 sensor outside. I also want to save the time. Thank you for your response and assistance.