Same time and situation a few nights later; temperature 74F.
[I’m retired so I can get away with another late night of relaxation/recreation on a Monday night.]

Even SWK wool and Celtic Croft Economy half-wool are too warm.

AK’s, SK Hiking or poly-cotton specialty fabrics, and USAK Casual’s are all good.

I posted this in Contemporary because at least in my (USA Mid-Atlantic States) area, and even late at night, I’ll be comfortable in lightweight materials only for most of the next half-year.

Hope I haven't jinxed it and prompted an extended cool spell.