Probably problem with item formatting in rules

[rossko57]

@witek_1308

Number:Dimensionless

Okay, so one Item is Number:Dimensionless and one is Number, so they do not compare directly.
You change your Items to be matching types, or you might change the comparison

[SOLVED] Comparaison with OpenWeatherMap temperature

Your Item has UoM, Units of Measurement. So it’s effectively 15 °C not just 15, and comparing with just 12 is apples-and-oranges. This is one of the clumsier parts of UoM. You can either extract just-the-number or compare with a temperature. if( (localHourlyForecast12Temperature.state as QuantityType<Number>).intValue <= 12 ) if( localHourlyForecast12Temperature.state <= 12 | "°C" )