I summered my vanda (noid) outside this summer. well experienced grower from local orchid society were saying humidity on long island about 50 all summer long (im not so sure though).
it was getting morning sun from 7 till about 11 am, then it was in shade of a tree. Temp over summer were 85 on average , some days higher and some 95 F (we did not have over 100F this year), nights were 70 or higher. Last month probably temp dropped. and like a week ago I brought it in (when night temp got down to 55F). Looks like its doing fine and yesterday I saw spike.
so probably you can .
By the way inside I grow it under light with temp about 75 most of the time. humidity with heating season drops to 20%, so I put small humidifier on the shelf close to it so RH got to 30%-40%. and it also got spike in may.