My girls are 2 weeks. On Monday I am going to my parents for 2 days (I should be back Wednesday night). So I'll be gone for just over 48 hours. I have been putting the girls outside during the day but bringing them in at night. Right now, I have been putting them in a cat carrier at night (they were an impromptu purchase so I didn't have a real brooder set up). I haven't had a heat lamp on them because my house is 77* (I don't want to pay insane amounts on my power bill lol). During the day here it has been in the mid to upper 80s but getting into the 60's at night which I know is too cold for them so that's why they have been coming inside. I put the cat carrier in the run with them and the last 2 nights that have been bedding down on their own in the carrier so I just go out and get it and bring them inside.
Here's a pic of my coop set up:
The hen house is too tall for them to get into and I don't have a ramp for them. While I'm gone it is forecasted to be 93-94* during the day and 72-74* at night with a slight chance of thunderstorms (10-20% and it hasn't rained in weeks). What would you guys do? I do have an old dog crate that I can clean out and leave them in the house in. I just feel bad doing that since they have gotten used to being outside during the day.
HELP!!
Here's a pic of my coop set up:

The hen house is too tall for them to get into and I don't have a ramp for them. While I'm gone it is forecasted to be 93-94* during the day and 72-74* at night with a slight chance of thunderstorms (10-20% and it hasn't rained in weeks). What would you guys do? I do have an old dog crate that I can clean out and leave them in the house in. I just feel bad doing that since they have gotten used to being outside during the day.
HELP!!