LOL!!! I tried it when mine were two weeks (w/ the heat lamp and all). I was so exhausted by the next morning, I gave up and reverted back to the house.
Our nights are just to variant here...40s one night, 60 the next. I've been putting them in the coop w/lamp during the day, and bringing them in at night. But I'm gonna give night time another go this weekend cause they're 4 weeks and have decent feathering. I'm envious of your milder, more stable climate!!
And
for making it through your first night...and with a little sleep it sounds like!! lol