“Generally, atmospheric temperatures on Jupiter are around 1,700 degrees F (around 930 degrees C), with the exception of areas above the planet’s poles, which are heated by auroras. Above the Great Red Spot, however, the atmosphere is about 2,420 degrees F (about 1,330 degrees C), O’Donoghue said.”
https://www.space.com/33551-jupiter-heats-up-great-red-spot.html
the question now is... Is Jupiter Heating Up or Cooling Down?
Jupiter’s temperatures in the clouds is very cold. Those temperatures are for the near vacuum conditions very high up. Something similar is seen in the Sun’s Corona where the temperatures reach millions of degrees. I suspect particles keep on getting energy kicks from the surrounding electric fields. They keep on getting faster and faster from the surrounding electric fields but since it’s high vacuum it’s rare to bump into another particle. Equilibrium is only reached at really high speeds where collisions can happen often enough to equal the constant supply of electrical energy.