Walked out the door at approximately 8:52 p.m. to take a look at the last bit of the sunset on the west side of my house.Noticed a lot of lights in the sky and thought, boy, there's a lot of airplanes out tonight. There were airplanes, but I saw a faint blue light moving at high speed underneath the clouds. I looked around and saw few faint blue lights and wondered if they were connected as one large craft, because they were separated by quite a distance. The distance of separation would have been at arm's length, if you held your hand out, arm stretched, in front of your face. At first I thought they were in trying other patterns, because there was three of them I saw period, but then I realized they were separate. I looked around and there were a whole bunch all around the entire sky all headed due north over Lone Peak mountain. Each one was a faint small blue looking light moving at high speed coming much faster than an airplane moves.They could have been military drones but they were moving so fast, and it was clear their agenda was to travel due north at a very high speed.There was a whole swarm of them that travel from as far as the eye could see from the south end of American Fork City, over Highland City, and then over Alpine City and over the Lone Peak mountain.I walked outside as the last of them we're traveling from the south end of American Fork Andover Lone Peak mountain. I probably conservatively counted 20 to 25 of them. But I think there was a lot more! I've never seen so many objects in the sky at once traveling so quickly and One Direction. They were a very faint dim blue color, they weren't too difficult to see but the color of the sky, clouds and sunset made it more difficult to see them and they seem to blend in more.There were low-lying clouds and they were below the clouds and traveling up and through the clouds, and disappeared out of sight as they flew over Lone Peak Mountain headed north.Their blue light was constant and was not blinking.The color of blue was a very faint navy blue. They appeared like small craft, and seem to all be moving in a swarm, separated by the aforementioned distance when your hand was outstretched towards the sky.The strange thing was is that it was very windy outside, they did not seem to be affected by the weather or wind at all, especially given how small they appeared to be? I had my cell phone camera with me, but realized that it would be pointless to try to take a photo because they were so faint against the sky and would likely not show up. So I didn't bother.