Back in 2022 I reworked some of the weather states for the Complete Edition of the Witcher 3 and also added a new weather condition "Grey Sky" to both White Orchard and Novigrad. I wasn't able to also make it work for Skellige in time for the release.
In this mod, I reworked the weather state to also fit the Skellige environment. It uses colder tones, has some extra foggy times of day, and other times where we can see quite clearly, despite the overcast sky. It doesn't replace any other weather condition, but is added on top of the existing ones, with a low chance of appearing (same chance as a storm), so it should fit in quite naturally.
As with the overcast sky for Novigrad and White Orchard that shipped with the Complete Edition, the goal of this mod was to add variety. The new weather state can look quite different depending on the time of day: Dramatic colours during sunrise, thick bright fog in the morning, a sharp and grey image around noon, cold blues in the afternoon, and fitting for Skellige, a light purple sunset.