diff --git a/apps/openmw/mwrender/sky.cpp b/apps/openmw/mwrender/sky.cpp
index 788848cc4..138365ae4 100644
--- a/apps/openmw/mwrender/sky.cpp
+++ b/apps/openmw/mwrender/sky.cpp
@@ -605,7 +605,6 @@ SkyManager::SkyManager(osg::Group* parentNode, Resource::SceneManager* sceneMana
     , mClouds()
     , mNextClouds()
     , mCloudBlendFactor(0.0f)
-    , mCloudOpacity(0.0f)
     , mCloudSpeed(0.0f)
     , mStarsOpacity(0.0f)
     , mRemainingTransitionTime(0.0f)
@@ -666,12 +665,15 @@ void SkyManager::create()
     ModVertexAlphaVisitor modClouds(1);
     mCloudMesh->accept(modClouds);
     mCloudUpdater = new CloudUpdater;
+    mCloudUpdater->setOpacity(1.f);
     mCloudMesh->addUpdateCallback(mCloudUpdater);
 
     mCloudMesh2 = mSceneManager->createInstance("meshes/sky_clouds_01.nif", mCloudNode);
     mCloudMesh2->accept(modClouds);
     mCloudUpdater2 = new CloudUpdater;
+    mCloudUpdater2->setOpacity(0.f);
     mCloudMesh2->addUpdateCallback(mCloudUpdater2);
+    mCloudMesh2->setNodeMask(0);
 
     osg::ref_ptr<osg::Depth> depth = new osg::Depth;
     depth->setWriteMask(false);
@@ -1060,14 +1062,12 @@ void SkyManager::setWeather(const WeatherResult& weather)
                                                                                        osg::Texture::REPEAT, osg::Texture::REPEAT));
     }
 
-    if (mCloudBlendFactor != weather.mCloudBlendFactor
-            || mCloudOpacity != weather.mCloudOpacity)
+    if (mCloudBlendFactor != weather.mCloudBlendFactor)
     {
         mCloudBlendFactor = weather.mCloudBlendFactor;
-        mCloudOpacity = weather.mCloudOpacity;
 
-        mCloudUpdater->setOpacity(mCloudOpacity * (1.f-mCloudBlendFactor));
-        mCloudUpdater2->setOpacity(mCloudOpacity * mCloudBlendFactor);
+        mCloudUpdater->setOpacity((1.f-mCloudBlendFactor));
+        mCloudUpdater2->setOpacity(mCloudBlendFactor);
         mCloudMesh2->setNodeMask(mCloudBlendFactor > 0.f ? ~0 : 0);
     }
 
diff --git a/apps/openmw/mwrender/sky.hpp b/apps/openmw/mwrender/sky.hpp
index 4b1acadc3..3855136a9 100644
--- a/apps/openmw/mwrender/sky.hpp
+++ b/apps/openmw/mwrender/sky.hpp
@@ -58,8 +58,6 @@ namespace MWRender
 
         float mCloudSpeed;
 
-        float mCloudOpacity;
-
         float mGlareView;
 
         bool mNight; // use night skybox
@@ -204,7 +202,6 @@ namespace MWRender
         std::string mClouds;
         std::string mNextClouds;
         float mCloudBlendFactor;
-        float mCloudOpacity;
         float mCloudSpeed;
         float mStarsOpacity;
         osg::Vec4f mCloudColour;
diff --git a/apps/openmw/mwworld/weather.cpp b/apps/openmw/mwworld/weather.cpp
index c571b1d1d..8d78b969e 100644
--- a/apps/openmw/mwworld/weather.cpp
+++ b/apps/openmw/mwworld/weather.cpp
@@ -374,7 +374,6 @@ void WeatherManager::setResult(const std::string& weatherType)
 
     mResult.mCloudTexture = current.mCloudTexture;
     mResult.mCloudBlendFactor = 0;
-    mResult.mCloudOpacity = current.mCloudsMaximumPercent;
     mResult.mWindSpeed = current.mWindSpeed;
     mResult.mCloudSpeed = current.mCloudSpeed;
     mResult.mGlareView = current.mGlareView;
@@ -478,7 +477,6 @@ void WeatherManager::transition(float factor)
     mResult.mNextCloudTexture = other.mCloudTexture;
     mResult.mCloudBlendFactor = factor;
 
-    mResult.mCloudOpacity = lerp(current.mCloudOpacity, other.mCloudOpacity, factor);
     mResult.mFogColor = lerp(current.mFogColor, other.mFogColor, factor);
     mResult.mSunColor = lerp(current.mSunColor, other.mSunColor, factor);
     mResult.mSkyColor = lerp(current.mSkyColor, other.mSkyColor, factor);
@@ -488,7 +486,6 @@ void WeatherManager::transition(float factor)
     mResult.mFogDepth = lerp(current.mFogDepth, other.mFogDepth, factor);
     mResult.mWindSpeed = lerp(current.mWindSpeed, other.mWindSpeed, factor);
     mResult.mCloudSpeed = lerp(current.mCloudSpeed, other.mCloudSpeed, factor);
-    mResult.mCloudOpacity = lerp(current.mCloudOpacity, other.mCloudOpacity, factor);
     mResult.mGlareView = lerp(current.mGlareView, other.mGlareView, factor);
     mResult.mNightFade = lerp(current.mNightFade, other.mNightFade, factor);
 
diff --git a/apps/openmw/mwworld/weather.hpp b/apps/openmw/mwworld/weather.hpp
index d5ac6d801..7f4858bc8 100644
--- a/apps/openmw/mwworld/weather.hpp
+++ b/apps/openmw/mwworld/weather.hpp
@@ -77,7 +77,7 @@ namespace MWWorld
         // Cloud animation speed multiplier
         float mCloudSpeed;
 
-        // Multiplier for clouds transparency
+        // TODO: What is this supposed to do?
         float mCloudsMaximumPercent;
 
         // Value between 0 and 1, defines the strength of the sun glare effect.