Due to clouds leftover from a recent tropical storm in the Gulf of Mexico (according to a weather guesser I heard on the TV recently), our skies here in Colorado since yesterday had been quite cloudy and overcast.
You can see for yourself, low lying clouds obscured views of the sun as it set yesterday:
2015 Last Summer Sunset
This same system of clouds, also obscured the next morning's sunrise:
2015 First Fall Sunrise
Previously: Running out of Gas on the URAL