Contributed by Sharon Butler / It’s the height of summer arts season in the Hudson Valley, and this is our most expansive Gallery Guide yet. On July 22-24, Upstate Art Weekend, featuring more than 100 exhibitions, extended gallery hours, and a slew of special events, adds a thick layer to the month’s already robust art programming. As a bonus, more than 50 artists will open their studios to the public. We are also pleased to see that SEPTEMBER Gallery will be reopening on July 23 at their new space in Kinderhook NY.