The temperature on the Dwarf Planet Eris is below 120 degrees Celcius.
Eris is not harm or cold it is kind of in the middle very similar to Eart,but not quite.You see Eris is not like all dwarf planets this one is not cole or warm its a good tempurture,there for us...
We do not yet truly know.
of course if its not weather then no whether in the world anymore so a weather is a weather
Its name come from a goddess in the ancient Greek and Roman mythology.