A quick experiment I've done while testing Screen Space Fog Scattering Plugin.
I was walking one of the days after a rainstorm and I noticed how the sky got a strange yellow tint to it, so I thought it would be interesting to replicate a similar lighting condition in Unreal :)
Third-Party Assets:
Hillside Sample Project by Epic Games at Fab.com
Screen Space Fog Scattering Plugin by Dmitry Karpukhin at Fab.com
EasyFog by William Faucher at Fab.com