Locations > California > Claremont Claremont, California UFO Sightings Claremont, California, Unspecified UFO Sighting - UFO sighted south western sky off Foothill BLVD.... 03/03-2023 - 1 comment 2 miles away: Montclair, California, Unspecified UFO Sighting - I think this tumbling down from nowhere looking like Santa sleigh that with a ghost rider effect.... 09/04-2018 2 miles away: Montclair, California, Fireball UFO Sighting - Back in 08 or 09 me and a friend saw a fire ball in the sky. To this day I still think about it. It was daylight and it was coming down and it would v... 04/04-2015       Submit a UFO sighting for Claremont, California: When did this happen (optional):