1) The coldest part of the day is actually the half hour just as the sun goes up. This is due to thermal conditions. I observed this today. It was ~31 when I woke up, and dipped down to 29 as the sun started to rise. Brrrrr.
2) The combination of high altitude and sunny skies means more heat loss when then sun sets than what I grew up with. There simply isn't anything to hold the warm air to the earth, and we experience ~30 deg difference between the low and high temp for the day. This is useful for knowing how to dress for the day. Also useful for deciding whether to run morning or evening.
With that in mind, here is the forcast for the week.
I would like to begin by saying that they LIED when saying the low for today would be 35. It was much colder than that when I woke up. I suspect the high won't quite make 60 deg. I wasn't quite ready to don my winter gear and head out in the cold, so I decided to postpone until the evening. At that time it will probably mid 50s and falling. I plan to wear capris and probably a long sleeve over a sleeveless shirt. I wouldn't be surprised if I find that I've over dressed once I start moving.
Thursday I will try to run in the morning. It is supposed to be low forties and rising. To me that is more palatable than low thirties like today. More importantly it is supposed to be same in the morning as race day (trust me on this even though I'm not showing Sunday in the snip above). That means I may get a chance to test my race day outfit (which is still tbd) to see how it works with the weather.
Of course weather predictions are always subject to change, so we'll see what really happens...
Note to self: I ended up wearing my Lotta Breeze Capris and teal long sleeve Nike shirt this evening. It was perfect for starting temp ~55, ending temp ~50