When Will Fall Start 2024. Here's everything you should know about the fall equinox—plus our. This sunday, the autumnal equinox is upon us, and with it, a shift to shorter days, longer nights and the astronomical start of fall in the northern hemisphere.

Highs will surge into the mid 60s by sunday and monday with more cloud cover, but we’ll at least stay. The first day of fall in 2024 is sunday, sept.