Thank you for sharing, Jud. So far, my dad seems cold most of the time. He is especially cool in hands and feet. He doesn’t report sweating or elevated temp. He can sit outside in a tshirt layered with flannel jacket in 82 degrees F for 2 hours and find a bit of comfort. I can’t handle it so hot, especially in our home as I am experiencing that time of life when I am too warm much of the time. I am the one sweating! 🥵

From https://www.parkinson.org/blog/tips/non-motor-s...
This inability to regulate body temperature can manifest as excessive sweating, or a drastic rise or drop in body temperature. Excessive sweating (hyperhidrosis), experienced by more than 50 percent of people with PD, consists of sudden, drenching sweats of the head and neck. Though it may occur in people taking no PD medications, it often occurs as prescriptions wear off or during episodes of dyskinesia. Adjusting dopaminergic therapy can help. One study suggests subthalamic deep brain stimulation (DBS) may also help. BOTOX ® injections can be used if sweating is localized to armpits.

Thank you for your feedback, Ginny. He does range of motion 5 days a week. He walks about 200 feet every 90 minutes. He is 88 so not too active anymore.

Is he getting regular exercise? Sitting still all the time will lower body temperature. Getting exercise can raise it.