We’re 22 days into autumn and after the recent warmup, we’ll return to the cool this weekend. As noted in a previous column, Indian summer occurs in mid- to late autumn, usually after the first killing frost. It’s difficult to experience this in our subtropical, south Louisiana climate, but is greatly appreciated through other sections of the country. The term’s usage has been traced to 1778 as Native Americans used these days to increase their winter food stores. In Europe, a similar weather pattern has been called Old Wives’ summer, Halcyon days and St. Martin’s summer. In previous columns, I referenced Indian summer on one of our broadcasts and received an email from Marsha Reichle. She wrote, “Dear Pat: It’s called Indian summer when we have Apache fog.”

Fastcast: Spotty showers.

Mostly sunny, with a high near 88. Calm winds becoming westerly at 5 mph. Tonight: a 20 percent chance of showers before 1 a.m. Low about 65. Westerly winds 5 mph.