Chinook, Montana, late summer 1969, the summer of Easy Rider
I was standing along the north fence line on Gay Stern's small ranch. Gay and I were talking after having trucked some cattle to Billy's Pond, a watering hole for the cows on the far side of the ranch. It had been hot and sweaty work as the mid-day temperature was about 95-degrees. Stern's place was on the Highline - Highway 2 - about 40 miles south of the Canadian border.
Looking towards the border we could see the sky darkening in the distance. Gay looked at me and in his laconic manner said "It's gonna get cold here real quick." The darkness moved closer to the ranch and Gay said "You're gonna experience something you ain't experienced before."
Within a few minutes the wind came up strong, daylight turned almost to night, and the temperature, carried by that wind, dropped to about 45-degrees, leastwise according to Gay. He was right. This New Yorker recently transplanted to California had never experienced such an event.