How cold is too cold?

[Cheeseburger Bandit]

I have 5-6 week old chicks that are outgrowing their indoor brooder. They are no longer under a heat lamp indoors. They are fully feathered, but it is still chilly out here. I'm in upstate NY, and its been consistently inconsistent in terms of temperature. Some days up to mid 60s, others blowing wind and sometimes rain/snow mix. We are still in the high 30s low 40s at night. I put a heat source in the coop, but it's still only about 45 degrees in there. Is this too cold for them overnight? They do have a space under their nesting boxes to huddle up, but I don't want to shock them. Any thoughts or suggestions?

 

[chickenlittle21]

Put them in the coop but put a heat lamp in too.

 

[rosemarythyme]

They should be pretty well feathered by this point so I'd pick a nice day in the forecast, and move them out then.

 

[Cheeseburger Bandit]

Thanks for the response. Supposed to warm up into the 50s this week so hopefully they will be able to go out. Have to go back to work next week so Fingers crossed we don’t wake up to more snow like we did this morning :/