Officials say residents were unprepared for the heavy flash floods, adding that the death toll could rise.
Featured Content
The ISIL (ISIS) armed group claimed responsibility for the attack in the Guzara district in Herat province.
Most casualties have been from roof collapses, while some 600 houses have been damaged or destroyed, authorities say.
On October 7, a series of powerful earthquakes hit remote western Afghanistan with much of the devastation hidden.