4 white and 1 red orb 'dancing' in daylight sky between Longmont and Boulder, Colorado

June 12, 2021 at 12:10pm Between Longmont and Boulder, midway, near Niwot.
Sunny, clear day. A few passing wispy clouds.
I was on the passenger side of the vehicle, looking out of the passenger door window toward Northwest, at the horizon. At about a 20-degree angle and beyond the horizon from my viewpoint, I saw 4 small white orbs slowly and smoothly ‘dancing’ within a cluster. There was also 1 red/orange orb that remained stationary in the lower left of the cluster. There seemed to be no pattern to the ‘dance’. The orbs appeared milky and fuzzy, perhaps because of the distance.
I watched for about 90 seconds then asked my husband, who was driving, to look at them. He was not able to visually locate them. One by one, the orbs seemed to disappear after having watched them for about 3 minutes.
 I am a 60-year-old college educated female from Tennessee. This is the first time I have reported a UFO sighting. Otherwise, I may have seen a UFO, along with my sister, when I was around 12-years-old in Louisiana.