Total Solar Eclipse of 2017 August 21
 Weather

Some official sources, for example NASA and USNO, certify, or at least let you think, that the path of totality for this total solar eclipse will only pass through 12 or 13 states: this is inaccurate at best. Indeed this eclipse path crosses 14 states:
             
In general the sky is clearer to the West of the eclipse track where the air is drier, that is Oregon, Idaho, Wyoming and Nebraska. It is important to also have in mind the time of the eclipse at your planned location because the cloudiness is usually not the same in the morning or afternoon hours.