Natural Phenomena as Evidence of Tawhīd

وَهُوَ ٱلَّذِىٓ أَرْسَلَ ٱلرِّيَـٰحَ بُشْرًۢا بَيْنَ يَدَىْ رَحْمَتِهِۦ ۚ وَأَنزَلْنَا مِنَ ٱلسَّمَآءِ مَآءً طَهُورًا

And it is He who sends the winds as good tidings before His mercy [i.e., rainfall], and We send down from the sky pure water