Actually it really isnt. Most places in the fall or early winter will experience daytime temps in the 50-70s and nighttime temps in the 10-30s this is normal for fall/winter weather. Your goats are perfectly capable of tolerating this just fine even without coats or heaters. Believe me if i could keep my goats warm all winter and not damage their health i would be doing it too, i think most of us would. I doubt any one of us looks outside with snow on the ground and the wind blowing and thinks...wow it's cold out there, good the goats deserve it. Of course no critter does but going from warm to cold to warm is going to cause respiratory problems. Respiratory problems/infections are usually quite severe by the time the owner notices the goat is sick and gets them vet care.Ok. Thanks guys! And @misfitmorgan in my region of the country it is usually in the 100s all summer and it has been in the 70s until just 2 weeks ago. The temperature all of the sudden made a huge drop in the past few weeks. We are not in the tropics but this is a subatiatial temperature drop for them.
Now, the Floridian on cold winter weather... You northerners can scoff.I know you care about your goats, i can tell and i just want you to understand providing extra heat for them is going to hurt them more then it helps them in the long run.