Retuner is overwhelming.

I just want my Sims to change into outerwear at a warmer temperature than currently. The only option I've found is kMinTemperatureWhenWearingWinterClothes, which is in Farenheit. I can look up a conversion online, but would be easier if it could recognize that I use Celsius. But my main point is, I need a maximum temp option, not a minimum. "This temp and below prompts change into Outerwear", you know. Please tell me if I'm missing something.

Aha! Found it, never mind. Although I do find the explanation of how to use to mod difficult to understand.

Retuner only shows how it is the XML which is in Farneheit the game uses a different method to convert it to Celsius

@silveryrow: I believe you're looking in the wrong place. I've answered this question in your other thread here: Post-uninstall issue but I'll repost the information again to keep everything together.

The option you're looking for is in:
General > By Tunable XML > Sims3.Gameplay.Actors > Sim > kTemperatureToSwitchOutOfOuterwear
and
General > By Tunable XML > Sims3.Gameplay.Actors > Sim > kTemperatureToSwitchToOuterwear
Those are the values you need to change.

Now, having read the above, I understand you're looking at this:-
General > By Tunable XML > Sims3.Gameplay.ActorsSystems > Sim Temperature > kMinTemperatureWhenWearingWinterClothes
That's not the right path.

As I understand it, Americans always work in degrees Fahrenheit. 'The Sims 3' is an American game so you're not going to see them use degrees Celcius.

Yes, thanks, I managed to find it in the end!

Since the game - mercifully - allows you to switch to Celsius, I thought maybe it would be the case within the game tweaks, but all sorted now