Have you thought about a template sensor? Like this:
#--------------------------------------------------------------------------------------------------
# Fix temperature sensor
#--------------------------------------------------------------------------------------------------
template:
- sensor:
- name: "Aeon converted temperature"
unit_of_measurement: "°C"
state: >
{% set orig_temp = states('sensor.yourtemp') | float %}
{% set final_temp = ((orig_temp - 32) / 1.8) - 32) / 1.8 %}
{{ (final_temp | round(1, default=0) }}type or paste code here
This will make it C and it should convert to F
The entity will be sensor.aeon_converted_temperature