Evening thermal winds always come down after sunset. Around here, Oregon coast...the colder air pools down low, and warmer air from the Pacific moves over my area. It’s warmer st 400-600 feet than it is at sea level. . Thermals reverse in the morning, as low air warms, and rises. I know a spot where I can still-hunt downhill in the AM, and the deer will be traveling uphill, with the thermal at their back...unless prevailing winds mess the whole thing ip
I hunted the Malheur at about 8000 feet on a draw hunt back in 1997 and found the thermals worked up in the morning and down in the afternoon as it cooled off. Mount Adams was brutal after dark. While I was scouting for elk sign, and there was a lot of it, I decided to come back to a rough camp below the tree line. The temperature was in the sixties until the sun went down, and then the cold air rushed down the mountain and almost froze us out. I didn’t take a bull on that hunt, but one came into our camp at 2:30 AM tearing stuff up because my baby brother took a dump in his scrap that morning. LOL (or it could have been a Sasquatch!)