Thanks for using JustAnswer.com, I'm Dr. Dan and I'll try to help you.
Is it hot or humid where your pooch is right now?
Has he been exercising at all?
Has he been shaking his head or scratching at his ears at all?
Thank you for the information. If he is otherwise acting normally then just hot ears and a nose are not that significant. If you want to know about a fever for sure then take a thermometer and place it gently in your dog's rear end. If it is less than 102.5 then your pooch is just fine, if it is higher then your pooch has a fever. Even if your pooch has a fever it is likely not an emergency. If the hot nose and ears continue into tomorrow you can certainly have it checked out, but if your pooch is otherwise normal then I doubt this is a big deal. A sure reason to see the vet tonight or tomorrow is the hot ears and nose with vomiting, severe bloody diarrhea, or unresponsive lethargy. Keep a close watch on the ear canals as sometimes warm ear flaps precede the beginning of an ear infection. Overall I suspect your pooch will be fine. I hope this helps, best wishes.