Exoplanets are now known to be common in the Galaxy, and the next step in studying these abundant worlds is to characterize their atmospheres. As new instrumentation and observing techniques develop, it is rapidly becoming possible to characterize smaller and cooler planets than ever before. In this talk, I will discuss the status quo in exoplanet atmosphere characterization, including recent measurements of sub-Neptune atmosphere composition and efforts to determine whether Earth-size planets have atmospheres at all. I will also overview the progress expected from next-generation observing facilities, including unprecedentedly precise measurements of the chemical composition and cloud properties of gaseous planets, and a first glimpse at the atmospheric and surface properties of rocky worlds.