Any advice? I have a 6 1/2 month male beagle and I'm trying to condition him and myself to run 6 miles 3-5 times/week. We walked 5 miles today (about 55 F) and sprinted at times and he seemed like he could handle it, though he was panting quite a bit and his mouth was foaming a little bit. He was pretty pooped after wards. What's the max temperature they can handle at this distance?