Free Things to Do in the Upper East Side the Weekend of Sep 18–20, 2026

Sep 18–20 · 3 picks hand‑checked by Stumblday against organizer pages · updated Oct 5

The 3 best free things to do in the Upper East Side the weekend of Sep 18–20

  1. German-American Steuben Parade — Sat Sep 19 · Free · Upper East Side
  2. 3rd Ave Community Festival — Saturday, September 19, 10 AM–6 PM · Free · Upper East Side
  3. New Dendrology at the Arsenal Gallery in Central Park — On view weekdays through Nov 6 · Free · Upper East Side / Central Park
#3
New Dendrology at the Arsenal Gallery in Central ParkThe Arsenal Gallery, Central Park, Upper East Side / Central Park, ManhattanTdorante10 · CC BY-SA 4.0 · Wikimedia Commons
On view weekdays through Nov 6, 2026 (closed holidays)Free admission

New Dendrology at the Arsenal Gallery in Central Park

Upper East Side / Central Park, Manhattan

Street Tree Tarot readings and commitment ceremonies with trees headline eleven artists' tree-loving show inside Central Park's Arsenal.

FreeArtTrees

About this list

Stumblday's hand-checked ranking of the best free things to do in the Upper East Side, Manhattan the weekend of Sep 18–20, 2026: 3 picks, refreshed weekly.

Worth planning ahead

Big weekends coming up — save them now, plan later.

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