What to expect from the weather this fall

The dog days of summer may be over for now, but don’t get too excited for crisp air and sweater weather yet.

While back-to-school season can act as a starting point for fall, residents in Oregon likely won’t see autumnal weather until later in September.

Here’s what you need to know about when fall begins, weather expectations for the season and when you can see fall foliage.

When does fall start?

The first day of fall is on the autumnal equinox, occurring Sept. 22, 2025, at 2:19 p.m. EDT in the Northern Hemisphere, according to the Old Farmer’s Almanac . Following the autumnal equinox, the days become shorter and nights grow longer until the winter solstice on Dec. 21.

While the astronomical start to fall is Sept. 22, the meteorological start to the season is at the start of th