float Weather_HeatIndexDegF(void) {

    int8_t temperature = (int8_t) Weather_getTemperatureDegF(); //Current room temperature in Degrees F
    int8_t humidity = (int8_t) BME280_getHumidity(); // Humidity in %RH

    float heatindex = 0;
    float hi[9] = {-42.379,2.04901523,10.1433127,-0.22475541,-6.83783/1000,-  5.481717/100,1.22874/1000,8.5282/10000,-1.99/1000000};

    if ((humidity >= 40) && (temperature >= 80)) {
        heatindex =  hi[0];
        heatindex += hi[1] * temperature;
        heatindex += hi[2] * humidity;
        heatindex += hi[3] * temperature * humidity;
        heatindex += hi[4] * temperature * temperature;
        heatindex += hi[5] * humidity * humidity;
        heatindex += hi[6] * temperature * temperature * humidity;
        heatindex += hi[7] * temperature * humidity * humidity;
        heatindex += hi[8] * temperature * temperature * humidity * humidity;

        return (int8_t) heatindex;
    }
    else {
        return temperature;
        }
    }