Fall Equinox 2026: What it means and when it happens

While many parts of the country are still experiencing hot weather, it’s comforting to know cooler temperatures could be on the way with the changing times. Today (Tuesday, September 22, 2026) marks the Fall Equinox, or the official beginning of astronomical autumn, in the Northern Hemisphere. This means sweaters, pumpkin-flavored snacks, and cozy fires can’t be too far away. (The opposite is true for those in the Southern Hemisphere.) Let’s take a look at the science behind th...