Kick off the magical Fiesta season with the beloved Official Hanging of the Rain Rock — a cherished NIOSA tradition that has brought good weather (and great vibes) for nearly 50 years! On Monday, April 20, 2026, at 10:00 a.m., join NIOSA leadership, stagers, and volunteers on the porch of NIOSA headquarters at 227 S. Presa St. (corner of Presa and Nueva streets) as the iconic holed Rain Rock is officially raised with festive music, confetti, and plenty of San Antonio spirit. This lively morning ceremony marks the official kickoff to A Night In Old San Antonio (NIOSA), setting the stage for four unforgettable evenings of culture, food, music, and preservation in the heart of La Villita